Hello, I have this annoying problem for some month now and I cannot find a way to solve it. I have a late 2007 MBP 15", which is the standard model except that it has a glossy Screen. Now the problem is that it seems to be logging me out to the login screen rather randomly. This can happen 5 times a day or only every two weeks. It mostly happens, when I try to enable the fullscreen mode on video sites (on several of them, not only one. It sometimes happend when trying to go fullscreen with VLC. It also happened once while playing minecraft and Civ 4. I basically get a spinning beach ball and then it is logging me off :S I'd like to point out that it's not the log out when inactive thingy, because I have that turned of and it also only happens when I'm actively doing something.