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OS: Windows XP 5.1 (Build: 2600)
CPU: GenuineIntel Unknown processor @ 3616 MHz with 2047MB RAM
Video: RADEON X850 Series     (6683)

General protection fault!

History: UUnrealEdEngine::DisableRealtimeViewports <- UUnrealEdEngine::PlayMap <- WButton::InterceptControlCommand <- WWindow::WndProc <- WWindow::StaticProc <- WWindow::WndProc <- WWindow::StaticProc <- WDialog::DoModal <- WDlgChooseGameMode::DoModal <- WEditorFrame::OnCommand <- WWindow::WndProc <- WWindow::StaticProc <- MessagePump <- MainLoop