My Cousin's iMac has been very problematic since he got it last christmas. Its a 350 MHz Model, running totally up to date 10.2. Its been having strange problems. Some of them include completely loosing all drag and drop abilities. Loosing mouse movement. We've reformatted before, and ran all the utilities including fsck. The latest problem was the mouse, and a quick fsck fixed it, except now when you drag anything to the trash, you get an unexpected error of type -51. I've already reformatted once, possibly twice. I can't imagine what else could be causing all these strange problems.