never like to double post, but this is breaking news! when I start it w/o a disk in, it now goes to a gray screen with a tiny folder in the middle that has the image of a question mark and then switches to a mac logo (not apple logo, but the old OS logo) and back and forth. I am guessing this is because I erased all data on hdd (none of it was mine anyways and my bro already transferred all his stuff to his new mac) Should I just try to get a tiger disk?