Actually, I've been having a very odd problem myself. Ever since I got a new motherboard/processor/RAM (same vid card) and reformatted my comp, any time that I right-click or try to delete, or copy/cut/paste a video file like .mpg or .avi (of any size), my monitor shuts off and turns back on real quick, like my monitor is changing video modes or something, and also windows makes a beep at me. Not that big of a deal, I can still delete or modify these files, its just kind of annoying and weird.