sorry, ,forgot to add the log. Here it is _________________________________________________ fixme:win:EnumDisplayDevicesW ((null),0,0x2afe374,0x00000000), stub! fixme:d3d:swapchain_init Add OpenGL context recreation support to context_validate_onscreen_formats fixme:d3d:swapchain_init Add OpenGL context recreation support to context_validate_onscreen_formats fixme:d3d:swapchain_init Add OpenGL context recreation support to context_validate_onscreen_formats fixme:d3d:swapchain_init Add OpenGL context recreation support to context_validate_onscreen_formats fixme:d3d:swapchain_init Add OpenGL context recreation support to context_validate_onscreen_formats fixme:d3d:swapchain_init Add OpenGL context recreation support to context_validate_onscreen_formats fixme:d3d:swapchain_init Add OpenGL context recreation support to context_validate_onscreen_formats fixme:d3d:swapchain_init Add OpenGL context recreation support to context_validate_onscreen_formats fixme:d3d:swapchain_init Add OpenGL context recreation support to context_validate_onscreen_formats fixme:heap:RtlCompactHeap (0xd8e000, 0x0) stub fixme:atl:AtlModuleInit SEMI-STUB (0x63323950 0x633233e8 0x63300000) fixme:d3d:swapchain_init Add OpenGL context recreation support to context_validate_onscreen_formats fixme:d3d:swapchain_init Add OpenGL context recreation support to context_validate_onscreen_formats fixme:d3d:swapchain_init Add OpenGL context recreation support to context_validate_onscreen_formats err:wgl:internal_SetPixelFormat Invalid operation on root_window err:d3d:context_set_pixel_format Failed to set pixel format 3 on device context 0x27c, last error 0. err:d3d:context_update_window Failed to set pixel format 3 on device context 0x27c. fixme:d3d:swapchain_init Add OpenGL context recreation support to context_validate_onscreen_formats err:mmtime:TIME_MMTimeStop Timer still active?! ___________________________________________________ In this example, I simply opened gmax and clicked on the material navigator. It crashes immediately.