Killing Floor won't start

[flanman]

When I try to startup, the program freaks out and this appears as an error.

 Build UT2004_Build_[2004-11-11_10.48]

OS: Windows NT 6.1 (Build: 7601)
CPU: AuthenticAMD Unknown processor @ 3004 MHz with 4095MB RAM
Video: NVIDIA GeForce GTX 460 (304)

General protection fault!

History: CreateDevice <- UD3D9RenderDevice::SetRes <- HandleBigChange <- UD3D9RenderDevice::Lock <- UViewport::Lock <- UWindowsViewport::Lock <- UGameEngine::Draw <- UWindowsViewport::Repaint <- UWindowsClient::Tick <- ClientTick <- UGameEngine::Tick <- Level Untitled <- UpdateWorld <- MainLoop <- FMallocWindows::Free <- FMallocWindows::Realloc <- 4C576C61 0 FArray <- FArray::Realloc <- 0*2 <- FMallocWindows::Free

 

[Xienen]

Try adding -windowed to your command line in Steam: in your Steam Library, right click on Killing Floor, select Properties, then click Set Launch Options.