Here's the situation. I was on my PowerBook, 10.4.6, and it was acting VERY slow. I was always getting the spinning beachball so I decided to reboot. Well the grey screen comes up, then the blue screen with the Mac OS X window comes up, the progress bar completes then it goes to load the desktop and everything else, yet nothing comes up. Just a blue screen with the mouse cursor. I can move the mouse and the cursor will move, but that's it. Just a blue screen. I've tried rebooting a few times and get the same thing every time. Anyone have any ideas?