IMac stuck on White screen w/folder icon with “?” on it
My almost ancient iMac (2003) is frozen- screen is white & has a flashing folder icon with a “?” on it. This just suddenly occurred tonight, for no apparent reason. No one has used the computer today. I tried turning the power off, waiting a few minutes and then turning it back on, but the same scree just returned. I don’t even know how to reboot it- I just remember “control, alt delete” from many moons ago, on PCs. 😬 Please help?
iMac, Mac OS X (10.6.8)