Mr Power Macintosh 8500 has stopped functioning properly. While I was using Photoshop 6, the screen froze, and I was forced to press the shut down button to turn off the computer. When I turned the computer on again, the monitor no longer functioned. I tried plugging my Power Macintosh into a different monitor, and that didn't work either. After several shut downs and start ups using the power button, the sound failed to work as well. When I asked this question before, someone, I believe it was LCGuy, suggested I check to make sure the processor was not damaged or knocked off its mount. However, I cannot find a way to the motherboard, and the screws preventing me from accessing it are very tight. Can anyone help me on this issue? Any support would be much appreciated.