my mac mini keeps logging me out after no activity.
the option to check/uncheck, "log out after X mins of no activity" is not an option to select.
when it forces a logout, the screen saver is showing, not moving, and when you move the cursor, it acts like an eraser and removes the part of the screen savor picture revealing the login screen underneath. of course this starts happening when my warranty period is over.
can anyone help? i've looked all over the net for this issue.
thanks.
Mac mini, OS X Mountain Lion (10.8.2)