So I got home today to find that my Mom's cat made a mess of my room, knocking over my PC monitor, speakers and CD's. I believe one of the speakers that was knocked off my desk struck my computer in some way. I was able to turn my computer on but my Monitor wasn't receiving any kind of signal. I immediately tried hooking up a different monitor to the computer and got the same results. So I then tried switching out the graphics card with an older one that I had when I originally replaced the one in this computer. I had success with this graphics card at first, I was able to log into my computer and access the internet etc. But after about 10 minutes, my computer went to blue screen, and then the monitor lost signal immediately after. I then proceeded to put the first graphics card back into the PC, but it still didn't work. So now I have two graphics cards that don't work and I'm not sure what's happening to them. When I take either graphics cards out of the PC, they feel hot to the touch, not burning hot but hot enough to raise some alarm. Anyone have any idea what might be happening? The Graphics Card that I had been using for the past 4 months is a Nvidia Geforce 9800 GT. I have a 400W Power Supply which is at or above the recommended power for the card. I almost wonder if the motherboard is causing this? I'm not a computer whiz by any means but I do understand most terminology and am capable of replacing most parts in a PC. Thanks for any help!