Michael,

I agree it's very likely it as nothing to do with Moi as I install quite a few programs and it's very likely one of these is causing the problem. What I find bizarre is it would seem that only Pipe2 reveal something is wrong. The simplest solution for me is not to use Pipe2 anymore for the time being.

As for the video driver, I didn't do anything with it as far as I can recall but I wouldn't bet on it, bad memory.

Thanks,
Felix