I have a 2006 "Core Duo" 2.0 15" MacBook Pro that I've been using as a media player for my downloaded videos and DVDs. It has been overheating. I regularly get horizontal "artifacts" across my desktop and some desktop icons get "garbled". When it overheats, the screen goes all crazy and locks up. I've been running SMCFanControl at maximum for some time now but that doesn't seem to help anymore. Yesterday I was playing video and the temp was at 170F (probably higher than that as I couldn't see the temp when the video was in full screen mode). Any ideas or thoughts on why it's running so hot? What can I do to get this fixed? This really burns me (not literally, I don't actually use this on my lap !!) that I was a fool and forgot to get Applecare (I was doing some contracting work in another state when the 1 year warranty ran out) Any ideas on what this will cost to get fixed? Thanks!