I have a really weird occurrence that happened whenever I hook up my computer to a projector via a VGA Adaptor. The computer will work fine until it gets hooked up, at which point upon startup I get a quick flash of bands of 'visual noise' on the startup screen (after the Apple appears). The weirdness is that this flash of noise will happen constantly after that point whenever I start up the computer and sometimes when I shut down. If I zap the PRAM, this will stop. But as soon as I hook it up to a projector it starts happening again (and it doesn't matter the make or model of projector - this happens whenever and wherever I do this, even using ones on the road provided by other schools/companies). While I can zap the PRAM after each time I use a projector (which is daily), I want to make sure that there isn't any underlying issue with a graphics card, the video output portion of the computer...a software glitch (as an aside, I got the computer right before having to spend a month in China and the first projector I used was there...could that have caused any problem? Just ruling out all possibilities) When I took it to TechServe they suggested the PRAM zap, which worked (until I started using a projector again). I've included a pic of the noise for reference. thanks!