ok..through an Intel program at work, I bought a new motherboard and CPU. I put it together before putting in the case, and it seemed to work. When I put it in the case, then it wouldn't work. So I figured it was a short. So i unscrewed the screws and then just tried a few at a time. Then...a little puff of smoke near where the battery is.....argh!! then i take out the screws...then it seems to work (although i haven't tried hooking up the hard drives or video card yet. then i tried screwing in the screws again.....smoke and i can see the one of the circuit board 'lines' getting very red and then the fan stopped. What might be causing this short? it seems that where the connections are in the back, that part of the motherboard has to be slightly elevated where the opposite doesn't. might it be the type of screws that I am using that is causing this short?