Metasequoia 4 Ver4.5.3 (32bit) is running. Build time: Nov 19 2015 20:12:07 Windows version : 6.1 (Windows 7) Number of CPU : 8 Physical memory : 16351 MB Direct3D11 Driver: NVIDIA GeForce GTX 970 DeviceID: 5058 SubsysID: 913904728 Revision: 161 FeatureLevel: 11.0 Exception code: c0000005 (EXCEPTION_ACCESS_VIOLATION) Access violation at address 016670F8. Write of address 0000000C. Module: C:\Metasequoia4_x86\Metaseq.exe 0x016670F8 Metaseq.exe: BooleanOp::Execute + 6136 bytes 0x013AA0A9 Metaseq.exe: CommandKnifeProcess::SawUp + 8041 bytes 0x0139F3A9 Metaseq.exe: CommandKnifeProcess::MouseUp + 41 bytes 0x0153FCA8 Metaseq.exe: TFormMain::CanvasMouseUp + 344 bytes 0x0153FB03 Metaseq.exe: TFormMain::CanvasLeftUp + 19 bytes 0x01720553 Metaseq.exe: MTEventClosureWithArg::invoke + 51 bytes 0x55029DCD MTKit.dll: MTObject::invokeCallback + 93 bytes 0x550523E4 MTKit.dll: MTTab::onLeftButtonUp + 52 bytes 0x54FD2973 MTKit.dll: MTApplication::wndProc + 4691 bytes 0x756E62FA USER32.dll: gapfnScSendMessage + 818 bytes 0x756E6D3A USER32.dll: GetThreadDesktop + 215 bytes 0x756E77D3 USER32.dll: CharPrevW + 319 bytes 0x756E789A USER32.dll: DispatchMessageW + 15 bytes 0x54FD37B5 MTKit.dll: MTApplication::enterEventLoop + 437 bytes 0x54FD35F9 MTKit.dll: MTApplication::execute + 9 bytes 0x017720A3 Metaseq.exe: _controlfp_s + 427 bytes 0x75B8337A kernel32.dll: BaseThreadInitThunk + 18 bytes 0x774E9882 ntdll.dll: RtlInitializeExceptionChain + 99 bytes 0x774E9855 ntdll.dll: RtlInitializeExceptionChain + 54 bytes