I did a quick search of the forums and didn't find any relatively recent threads on this issue. My Macbook Pro just turned 4 at the beginning of the month, its the 15" with a 2 Ghz processor. I can provide other information about it as requested. The problem I have been having is an interesting one, my screen will freeze up often while watching a video but in recent weeks sometimes it freezes randomly. Now the screen does not lock up entirely: the clock in the corner stops ticking (I display the seconds), I cannot scroll or close out of windows, I cannot select anything from the dock, but my mouse still moves about and changes from the arrow to the pinwheel on and off. I've let it sit in this state for a little while and it does not change and I've attempted putting it to sleep in this state but it never goes to sleep when it's like this. I thought the issue might be from overheating because my MBP has been running much hotter than usual but now it seems to lock up even when it's running at cooler temperatures. I no longer have Apple Care because I never had a problem so I never renewed it. A friend suggested that because of other small problems (ie: random lines appearing across the desktop and windows) that perhaps my graphics card is going. I was considering buying a new MBP 13" but not if this is a fixable issue (or worth fixing). Thanks!