shit happens… maybe your system is unstable? what’s yours? if vista you have to run vvvv as admin but you surely did…
The problem can be anything… by example i have some strange crashes sometimes on my main partition, freezing everything to reboot or telling me “the memory … can’t be read” things.
So one thing you can do is to try beta20 on another disk partition, i mean on a clean system with vvvv’s requirements only (directx etc…) and see what happens. That’s what i did and it works well on it now.
(except one thing:
Sometimes vvvv don’t want to save my patch. I click on “save as” but nothing happens. The solution i get is to duplicate patch in root and save the copy…)