Thanks for the ctrl-8 tip and the modules. That was what I was looking for! Like woei I don’t see any performance difference between full screen and windowed.
Thiking about it I mainly had problems when going between different monitor + projectors, i.e. getting it working on one pc+2nd monitor, going out to gig with desktop pc, plugging into a different (borrowed) monitor at different desktop resolution and a seperate projector, and that was when the problems mainly happened.
I’ve got a feeling it’s related to using certain video clips (mainly wmv) because it usually works fine on only 3d/direct x stuff. I just did more tests and it works with mjpegs and with quicktimes. I’ve stopped using wmvs now anyway. Too many weird problems even though they seemed to be the fastest…
Also I realised that with the machines that didn’t work, I’d swapped the video card between them so they both used it. Perhaps it was related to that card (an nvidia 7900 GT). Now using a 8600 GT on this machine and it’s working better so far. will post more info if it messes about again esp when I go back to the other machine with that card in.