OK, the other day my dad accidently set the resolution on my brother's Mac Mini (connected to a 21" CRT) to a refresh rate that the monitor could not handle. As far as I knew, when that happens and the screen goes blank, it should automatically reset it after 30 seconds if you do not confirm the changing of the resolution/refresh rate. Well that didn't happen, and now I can't change it back. I've tried rebooting the Mini, resetting the monitor, turning it off and on, etc. But is there any way to change the refresh rate back to normal (1600x1200 at 60-65hz) without re-installing OSX?