1 Reply Latest reply: Jun 18, 2011 7:25 PM by Eric Ross
jefffromdana point Level 1 (0 points)

on two occassions my iMac has just gone black.  Into a deep sleep that can't be helped by keystrokes or mouse movements.

I needed to do a hard shut down via start button and then restart.  It comes back up fine but I would like to know what might be causing these "black outs" and what I might be able to do about it.

iMac, Mac OS X (10.6.7)