JawsTDS said:

Turned off resync in VDub and it no longer does that. But, I still have sync issues in the capture. I'm capturing YUY2 AVI. Any suggestions to stop this from happening? It doesn't seem to be dropping frames either, it just says that it "inserted frames".

Capture in uncompressed YUV (YUY2) is quite stressful for the CPU, in particular old ones; my advice is to use a lossless codec, like Lagarith or MagicYUV (a new codec) - don't forget to set YUY2 instead YV12 - probably, frame dropping will end due to lower CPU usage.

Of course, the best situation is to capture always with any other software closed - just VirtualDub should be opened, and with the right sync settings.