I have a large screen that I link my laptop to when I at home.
for the last 24hrs (since updating my softwear) it has acted as though it is still linked up to the external screen. For example Powerpoint is placed on the top right where I cant get to it (the only reason I know is it shows when you press F3).
MacBook Pro (13-inch Mid 2010), OS X Mountain Lion (10.8.2)
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