I can't seem to get Virtual Dub to work. I'll select composite as the source and the video shows on the screen, but as soon as I try to start the capture I get an error that it can't open the source. I look back at the source and camera is selected. No matter what I have tried the source always reverts back the camera and refuses to stay on composite. The WinTV applications captures fine, but I need to use Virtual Dub spill file feature. Any ideas?

Running:
Pentium III 500
Windows 98SE
No other applications are running while capturing and the screen saver is disabled.