I have the same problem too. My PC is running in Windows 7, with Service Pack installed. The Algodoo is running on version 2.1. This is what's happening to Algodoo:
http://i.imgur.com/wllZis8.jpg. And here's the logfile:
---------------------------------------
Algodoo v2.1.0, Win32
February 18 2015, 18:09:35
---------------------------------------
292 ms: Timer type: rdtsc
292 ms: Timer overhead: 13.98 ns
292 ms: Process attached to CPU 1
292 ms: CalcWorkDir
292 ms: GetExecutablePath
292 ms: - WARNING - Missing 简体中文 translation for ShareOnAlgobox
292 ms: - WARNING - Missing 简体中文 translation for Option_GUIScale
292 ms: - WARNING - Missing 简体中文 translation for EqualAxis
292 ms: - WARNING - Missing 简体中文 translation for Square
292 ms: - WARNING - Missing 简体中文 translation for ToolTexture_Tooltip_Touch
293 ms: - WARNING - Missing 简体中文 translation for ToolTracer_Tooltip_Touch
293 ms: - WARNING - Missing 简体中文 translation for Plot_Momentum_X
293 ms: - WARNING - Missing 简体中文 translation for Plot_Momentum_Y
293 ms: - WARNING - Missing 简体中文 translation for PlayTour_Drag3_Touch
293 ms: - WARNING - Missing 简体中文 translation for PlayTour_Drag
293 ms: - WARNING - Missing 简体中文 translation for SceneSaved
293 ms: - WARNING - Missing 简体中文 translation for PlayTour
293 ms: - WARNING - Missing 简体中文 translation for PlayMode_Tooltip_Touch
293 ms: - WARNING - Missing 简体中文 translation for Layer_Add
293 ms: - WARNING - Missing 简体中文 translation for Gravity
293 ms: - WARNING - Missing 简体中文 translation for SimulationFreq_Tooltip
293 ms: - WARNING - Missing 简体中文 translation for HideWindows_Tooltip_Touch
293 ms: - WARNING - Missing 简体中文 translation for PlayTour_Reload
293 ms: - WARNING - Missing 简体中文 translation for QuickTour_TopMenu_Touch
293 ms: - WARNING - Missing 简体中文 translation for Thumbnail_Tooltip
293 ms: - WARNING - Missing 简体中文 translation for UndoSpongify
293 ms: - WARNING - Missing 简体中文 translation for ChainBreakImpulse_Tooltip
293 ms: - WARNING - Missing 简体中文 translation for LabeledSlider_Tooltip_Touch
293 ms: - WARNING - Missing 简体中文 translation for Thumbnail
294 ms: - WARNING - Missing 简体中文 translation for Spongify
294 ms: - WARNING - Missing 简体中文 translation for ToolPlane_Tooltip_Touch
294 ms: - WARNING - Missing 简体中文 translation for WidgetMenuButton_Tooltip
294 ms: - WARNING - Missing 简体中文 translation for PlayTour_Scenes
294 ms: - WARNING - Missing 简体中文 translation for PlayTour_Drag4_Touch
294 ms: - WARNING - Missing 简体中文 translation for ShowWindows_Tooltip_Touch
294 ms: - WARNING - Missing 简体中文 translation for ToolBrush_Tooltip_Touch
294 ms: - WARNING - Missing 简体中文 translation for Straight
294 ms: - WARNING - Missing 简体中文 translation for OnScreenKeyboard
294 ms: - WARNING - Missing 简体中文 translation for ToolMove_Tooltip_Touch
294 ms: - WARNING - Missing 简体中文 translation for ToolScale_Tooltip_Touch
294 ms: - WARNING - Missing 简体中文 translation for PlayTour_Pan_Touch
294 ms: - WARNING - Missing 简体中文 translation for PlayTour_Pan
294 ms: - WARNING - Missing 简体中文 translation for PlayTour_Zoom_Touch
294 ms: - WARNING - Missing 简体中文 translation for ToolChain_Tooltip_Touch
294 ms: - WARNING - Missing 简体中文 translation for ToolThruster_Tooltip_Touch
294 ms: - WARNING - Missing 简体中文 translation for ToolPolygon_Tooltip_Touch
294 ms: - WARNING - Missing 简体中文 translation for QuickTour_Edit_Touch
294 ms: - WARNING - Missing 简体中文 translation for ToolSketch_Tooltip_Touch
294 ms: - WARNING - Missing 简体中文 translation for Option_WindSpeed_Tooltip
294 ms: - WARNING - Missing 简体中文 translation for Air
294 ms: - WARNING - Missing 简体中文 translation for SimulationFreq
294 ms: - WARNING - Missing 简体中文 translation for ChainBreakImpulse
295 ms: - WARNING - Missing 简体中文 translation for Option_GUIScale_Tooltip
295 ms: - WARNING - Missing 简体中文 translation for Options_FixedContextMenu_Tooltip_Touch
295 ms: - WARNING - Missing 简体中文 translation for PlayTour_Cut
295 ms: - WARNING - Missing 简体中文 translation for Slider_Tooltip_Touch
295 ms: - WARNING - Missing 简体中文 translation for PlayTour_Zoom
295 ms: - WARNING - Missing 简体中文 translation for Layer_X
295 ms: - WARNING - Missing 简体中文 translation for PlayTour_Drag_Touch
295 ms: - WARNING - Missing 简体中文 translation for ToolLaserPen_Tooltip_Touch
295 ms: - WARNING - Missing 简体中文 translation for Accelerometer
295 ms: - WARNING - Missing 简体中文 translation for ToolSpring_Tooltip_Touch
295 ms: - WARNING - Missing 简体中文 translation for WhiteboardBar
295 ms: - WARNING - Missing 简体中文 translation for Adhesion_Tooltip
295 ms: - WARNING - Missing 简体中文 translation for Adhesion
295 ms: - WARNING - Missing 简体中文 translation for ChainBreakImpulse_Tooltip_Touch
295 ms: - WARNING - Missing 简体中文 translation for PlayTour_Drag2
295 ms: - WARNING - Missing 简体中文 translation for PlayTour_Drag3
295 ms: - WARNING - Missing 简体中文 translation for PlayTour_Drag4
295 ms: - WARNING - Missing 简体中文 translation for PlayTour_Enter
295 ms: - WARNING - Missing 简体中文 translation for Option_WindAngle_Tooltip
295 ms: - WARNING - Missing 简体中文 translation for PlayTour_Drag2_Touch
295 ms: - WARNING - Missing 简体中文 translation for ToolDrag_Tooltip_Touch
295 ms: - WARNING - Missing 简体中文 translation for LayerOptions
295 ms: - WARNING - Missing 简体中文 translation for ToolGears_Tooltip_Touch
296 ms: - WARNING - Missing 简体中文 translation for ToolCut_Tooltip_Touch
296 ms: - WARNING - Missing 简体中文 translation for Option_WindSpeed
296 ms: - WARNING - Missing 简体中文 translation for ToolCircle_Tooltip_Touch
296 ms: - WARNING - Missing 简体中文 translation for ToolBox_Tooltip_Touch
296 ms: - WARNING - Missing 简体中文 translation for ToolFixJoint_Tooltip_Touch
296 ms: - WARNING - Missing 简体中文 translation for ToolHinge_Tooltip_Touch
296 ms: - WARNING - Missing 简体中文 translation for LayerOptionsButton
296 ms: - WARNING - Missing 简体中文 translation for PlayTour_Cut_Touch
296 ms: - WARNING - Missing 简体中文 translation for PlayTour_Algobox
296 ms: - WARNING - Missing 简体中文 translation for Option_WindAngle
296 ms: - WARNING - 简体中文 had "Option_16BitTextures" which was not found in the English original
296 ms: - WARNING - 简体中文 had "ChainBreakeImpulse" which was not found in the English original
296 ms: - WARNING - 简体中文 had "Option_Shaders" which was not found in the English original
296 ms: FileSystem::RenameFile: "Algodoo/Logfile_previous.txt" already existed.
296 ms: Permanently erasing file "Algodoo/Logfile_previous.txt"...
296 ms: No joysticks detected
296 ms: Subsystem initialized
300 ms: ------------------------------------------------------
300 ms: CPU: Pentium(R) Dual-Core CPU E6600 @ 3.06GHz
300 ms: 2 cores at 3066 MHz
300 ms: CPU features:
300 ms: MMX - yes
300 ms: SSE - yes
300 ms: SSE2 - yes
300 ms: SSE3 - yes
300 ms:
300 ms: Windows 6.1
300 ms: ------------------------------------------------------
300 ms: argv[0] == "C:\Program Files (x86)\Algodoo\Algodoo.exe"
301 ms: Threadpool...
301 ms: Resources...
303 ms: Looking for DCS API...
304 ms: Failed to find DcsSdkDll.dll
306 ms: Initializing Pango...
324 ms: Pango initialized
324 ms: Skin::OnSkinChange...
324 ms: Borders::Reload...
356 ms: Skin::RemakeTextDrawers...
356 ms: Looking for usable font...
365 ms: - WARNING - The set font ("Verdana") works badly with the current language ("简体中文"), looking for fallback...
396 ms: Found good fallback in Tahoma
403 ms: Simulation...
403 ms: SPH...
403 ms: Scene...
403 ms: Input...
403 ms: Classmate...
403 ms: GUI...
403 ms: Adding console...
403 ms: Adding Reflection...
403 ms: Adding Language...
403 ms: Adding Tools...
403 ms: Adding EntityModifier...
403 ms: Starting application...
403 ms: Loading chains...
406 ms: Loading Algodoo/chains/chain.phn...
406 ms: Deserializing code...
412 ms: Code deserialized
412 ms: Imported phunlet Algodoo/chains/chain.phn
416 ms: Loading Algodoo/chains/rope.phn...
416 ms: Deserializing code...
420 ms: Code deserialized
420 ms: Imported phunlet Algodoo/chains/rope.phn
424 ms: Initializing thread-pool...
425 ms: Application created
425 ms: Parsing Algodoo/thyme.cfg...
428 ms: Done parsing Algodoo/thyme.cfg.
428 ms: Parsing Algodoo/autoexec.cfg...
499 ms: Done parsing Algodoo/autoexec.cfg.
499 ms: Parsing Algodoo/config.cfg...
524 ms: Loading language English...
575 ms: App::CreateGUI done
643 ms: Got NULL when creating widget, id = "Whiteboard", group = "NULL
643 ms: Got NULL when creating widget, id = "Whiteboard", group = "NULL
772 ms: Done parsing Algodoo/config.cfg.
772 ms: Subsystem::CreateTheWindow
772 ms: Creating window...
874 ms: * SCOPE BEGIN: QResizeEvent
874 ms: QEvent::Resize from [-1, -1] to [1440, 900]
874 ms: * SCOPE END: QResizeEvent
874 ms: * SCOPE BEGIN: QTWindow::resizeEvent
874 ms: * SCOPE END: QTWindow::resizeEvent
875 ms: GLWidget::showEvent
875 ms: Failed to connect to the SBSDK
879 ms: Init GLEW...
881 ms: Unloading GL resources...
881 ms: Done Unloading GL resources
881 ms: OSImpl::OnWindowCreated, hwnd = 003211B8
881 ms: LoadTouchAPI
881 ms: Touch API loaded.
882 ms: SetDisplayAutoRotationPreferences not found (pre Win8)
882 ms: Looking for accelerometer...
952 ms: Unable to find any sensors on the computer.
952 ms: Window created.
952 ms: Setting root container size to [1438, 898] (scale = 1)
952 ms: Looking for tablet...
953 ms: No tablet found (or Wintab32.dll missing)
953 ms: Web...
955 ms: Prefetching resources...
955 ms: Prefetching textures...
1153 ms: Prefetching shaders...
1206 ms: Prefetching done.
1206 ms: Creating GUI...
1206 ms: AppGUI::CreateGUI(recreate=true)...
1206 ms: Skin::OnSkinChange...
1207 ms: Borders::Reload...
1330 ms: Skin::RemakeTextDrawers...
1331 ms: Looking for usable font...
1393 ms: Serializing widgets...
1394 ms: Removing widgets...
1399 ms: Restoring widgets...
1509 ms: Got NULL when creating widget, id = "Whiteboard", group = "NULL
1509 ms: Got NULL when creating widget, id = "Whiteboard", group = "NULL
1712 ms: Naming widgets...
1712 ms: AppGUI::CreateGUI done.
1712 ms: App::CreateGUI done
1712 ms: Loading scene...
1713 ms: AppGUI::LoadScene "_ONEXITSAVE.phz", automatic = true
1714 ms: Loading Algodoo/scenes/_ONEXITSAVE.phz...
1717 ms: Deserializing code...
1758 ms: ShowLoading: "Loading code..."
2155 ms: Code deserialized
2155 ms: Loaded scene Algodoo/scenes/_ONEXITSAVE.phz
2156 ms: Running program...
2157 ms: Multi-texturing is supported
2157 ms: OS language: 0804
2157 ms: MakeWelcomeScreen()
2162 ms: ------------------------------------------------------
2162 ms: OpenGL vendor: Intel
2162 ms: OpenGL renderer: Intel(R) G41 Express Chipset
2162 ms: OpenGL version: 2.1.0 - Build 8.15.10.2555
2162 ms: OpenGL shading language version: 1.20 - Intel Build 8.15.10.2555
2162 ms: OpenGL extensions: GL_EXT_blend_minmax GL_EXT_blend_subtract GL_EXT_blend_color GL_EXT_abgr GL_EXT_texture3D GL_EXT_clip_volume_hint GL_EXT_compiled_vertex_array GL_SGIS_texture_edge_clamp GL_SGIS_generate_mipmap GL_EXT_draw_range_elements GL_SGIS_texture_lod GL_EXT_rescale_normal GL_EXT_packed_pixels GL_EXT_texture_edge_clamp GL_EXT_separate_specular_color GL_ARB_multitexture GL_EXT_texture_env_combine GL_EXT_bgra GL_EXT_blend_func_separate GL_EXT_secondary_color GL_EXT_fog_coord GL_EXT_texture_env_add GL_ARB_texture_cube_map GL_ARB_transpose_matrix GL_ARB_texture_env_add GL_IBM_texture_mirrored_repeat GL_EXT_multi_draw_arrays GL_NV_blend_square GL_ARB_texture_compression GL_3DFX_texture_compression_FXT1 GL_EXT_texture_filter_anisotropic GL_ARB_texture_border_clamp GL_ARB_point_parameters GL_ARB_texture_env_combine GL_ARB_texture_env_dot3 GL_ARB_texture_env_crossbar GL_EXT_texture_compression_s3tc GL_ARB_shadow GL_ARB_window_pos GL_EXT_shadow_funcs GL_EXT_stencil_wrap GL_ARB_vertex_program GL_EXT_texture_rectangle GL_ARB_fragment_program GL_EXT_stencil_two_side GL_ATI_separate_stencil GL_ARB_vertex_buffer_object GL_EXT_texture_lod_bias GL_ARB_occlusion_query GL_ARB_fragment_shader GL_ARB_shader_objects GL_ARB_shading_language_100 GL_ARB_texture_non_power_of_two GL_ARB_vertex_shader GL_NV_texgen_reflection GL_ARB_point_sprite GL_EXT_blend_equation_separate GL_ARB_depth_texture GL_ARB_texture_rectangle GL_ARB_draw_buffers GL_ARB_color_buffer_float GL_ARB_half_float_pixel GL_ARB_texture_float GL_ARB_pixel_buffer_object GL_EXT_framebuffer_object GL_ARB_draw_instanced GL_ARB_half_float_vertex GL_EXT_draw_buffers2 GL_WIN_swap_hint GL_EXT_texture_sRGB GL_EXT_packed_float GL_EXT_texture_shared_exponent GL_ARB_texture_rg GL_ARB_texture_compression_rgtc GL_NV_conditional_render GL_EXT_texture_swizzle GL_ARB_framebuffer_sRGB GL_EXT_packed_depth_stencil GL_ARB_depth_buffer_float GL_EXT_transform_feedback GL_EXT_framebuffer_blit GL_ARB_vertex_array_object
2162 ms: GLU version: 1.2.2.0 Microsoft Corporation
2162 ms: GLU extensions: GL_EXT_bgra
2163 ms: ------------------------------------------------------
2163 ms: ------------- START OF GAME LOOP -------------
2191 ms: Successfully checked for updates
2192 ms: Testing FBO support...
2192 ms: Non-PoT FBO:s supported
2192 ms: Pre-buffering scene...
2192 ms: Allocating new texture atlas (nr 1)
2225 ms: Pre-buffering done.
2226 ms: TEX_ATLAS_Distmap: 4 MiB
2226 ms: TEX_Icon: 4.2 MiB
2226 ms: TEX_Border: 2.2 MiB
2226 ms: Total VRAM allocated: 10.8 MiB
2242 ms: Background::Init...
2242 ms: Loading images...
2305 ms: Background::Init done
2329 ms: Allocating new texture atlas (nr 1)
3496 ms: Setting root container size to [1438, 898] (scale = 1)
3496 ms: * SCOPE BEGIN: QResizeEvent
3496 ms: QEvent::Resize from [1248, 708] to [1440, 900]
3496 ms: * SCOPE END: QResizeEvent
13399 ms: ------------- END OF GAME LOOP -------------
13400 ms: Subsystem::Run returned, saving config...
13422 ms: Permanently erasing file "Algodoo/scenes/_ONEXITSAVE.phz"...
13424 ms: Saving scene: Algodoo/scenes/_ONEXITSAVE.phz
13844 ms: Scene saved to Algodoo/scenes/_ONEXITSAVE.phz
13845 ms: Destroying GL resources
13867 ms: Destroying subsystem
13867 ms: Shutting down critical components
13871 ms: Destroying stuff