¶Sometimes I hate 3D hardware
VirtualDub 1.7.1 has a hidden feature: it tests whether your 3D card supports occlusion query in OpenGL.
If you see a crash when selecting the "screen capture" driver in capture mode, you don't have it.
Some people have unfortunately discovered that this prevents entering capture mode again, since the crash happens after VirtualDub remembers the last capture driver. Workaround: Hold down SHIFT when selecting File > Capture AVI from the menu.