Hi, my powerbook 1.5ghz is running 10.5.1, clean install from about a month ago. Stuffit locked up and I had assumed that i could just force quit, but i think it was running some background process... So i tried to launch activity monitor... Which popped up a box saying "activity monitor can not start because of incorrect file permissions" which I thought was strange. So I tried to go repair them with disk utility during which the status bar would get like 1/5 of the way through and just sit there. I let it sit for 45 minutes and didn't make any progress so I stopped it. I tried rebooting the machine and booted to the leopard DVD to use the disk utility there but it happened too, it got nowhere when I tried to repair. Anyone have any suggestions? Thanks.