So I'm down to my iPad as a computing device. Early 2008 MP, 2.8ghz octo core, 6gb, 8800 GT. 10.7.4. 23" ACD. Everyday apps are: FCP 7, color, motion, lightroom, and photoshop, in that order. She's run like a dream until the last few days, when the graphics card fan started running full throttle 24/7, regardless of load. Then video related apps begin to slow down. Fcp needs to be restarted almost any time I do anything, and motion completely locked up the computer altogether. A motion export that should take 5min says it'll take 30+ hours. Fcp render that used to take 2min now takes 45. Quick looking a video almost always results in an error message, and when one does play I mostly see the first two frames and it hangs. Now it's at the point where I have to run one app, save it, restart the computer, run the next app, save it, and restart again before daring to launch the next one... Simple quitting and switching over renders the computer too slow and beachball-y to do anything, even check mail. Given the gfx card fan issue and that the computer mostly goes crazy when video is involved, what could be going wrong? Is the there a new card in my future or has OSX just gone wrong? Help!