I am running an emac with OS X 10.4 installed (I think). Anyway, I've been searching all morning for a solution in the forums, but haven't really seen or been able to solve my problem. The computer was shut down correctly over the weekend, there are no grinding noises, no error messages, the screen is just stuck on that grey screen with the apple and progress wheel and won't finish booting up all the way. It's happened once before, but I just did a hard restart on it, and it has worked fine ever since. Never had any real problems until now, but nothing I have tried from searching on the forums has worked (apple X, option control, restarts, etc.). It won't boot up in any kind of safe mode, that I can figure out. Is there something I am missing, or not trying, or am I just toast?