A flashing grey file with a white question mark on it, sugesting that it doesn't know what disk to start up from. What should I do?
An icon of a grey folder with a white question mark on it is flashing on and off in the center of my screen The iMac doesn't what disk to launch from. I've seen this problem before but I don't know how to fix it. Any disk of any kind I put in it immediately spits out. Can you help?
