In the release notes from build 128, it says that it fixes a bug in the MainConcept mpeg plugin which caused K6s to crash. Well, it actually crashes exactly the same way as build 107.
Hmmm, i've been using VV for quite some time and have definitely pushed capture and editing to the limits. I have an AMD K6-2 400 and I can capture and edit beautifully without any crashes using VV on WinXP.