Ok, so heres my situation. Recently my Macbook Pro has been freezing a lot. Sometimes it will freeze at Start Up as soon as I get to the login window. The mouse won't move and the keyboard doesn't work. Sometimes I experience this half way through login window (as I'm typing my password). Then if I type my password and log in by the time everything has pulled up, it freezes again no mouse or keyboard response. When I get logged in my iStats show full CPU usage on both cores. Ok so if I ever get logged in, sometimes it takes 10 shutdowns and start ups till I can get it logged in, it'll randomly freeze. So basically it freezes a lot. I'm thinking that this is a software issue, and maybe a clean install will fix all of this. Strangely enough, Photoshop CS4 has began to crash among dragging layers as soon as this has started. So should I back up, and clean install everything. Or just take it to Apple, (my screen has keyboard yellow green impressions anyway). Thanks for the help.