IMac display is zoomed in and the scaled resolution function is blank, providing no choices for changing resolution. Tried Cmd Option -, no change.
When I turned on my 7 month old iMac the display was zoomed way in. When I went into System Preferences (Display) and clicked on "Scaled" to change the resolution there were no resolution options showing (blank window). I tried the "Command Option -" with no luck. Tried it in safe mode too. Nothing works so far. Help?
iMac, OS X Mountain Lion (10.8.4), iMac is only 7 months old.