I recently bought a Power Mac G5 with 3 20" cinema displays, each with their own video card. I've since stopped using one and it sped up some. But even with the most simple tasks, it is hella slow and freezes sometimes. If I just have Firefox and iTunes open, it runs slow and the fans kick in overdrive. The main video card is an ATI Radeon x800 with 256 RAM and the other is a 9200 with 128 RAM. Does anyone have any ideas on how to free up my RAM and speed it up?