Screen Flashes when Video Plays

[jarvis24]

Don't know. Out of curiosity--does the same thing happen if you try alternative video formats such as avi vs. mpg vs. wmp vs. animated gif and such? Actually, I just tried mpg's and it does the same thing--at least in WMP. Because it seems to be a WMP thing, I don't know that there is a way around it. If you try to play your two clips back to back (i.e., on the same trial, with no delay) in DirectRT, do you get a black flash between them?