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Message: <blockquote data-quote="akqjt" data-source="post: 395688" data-attributes="member: 31297">I had a bit of an ... <a href="http://pics.livejournal.com/terrencechan/pic/0004xy1t/s640x480" target="_blank">accident</a> with my PowerBook, and have destroyed the monitor.  It is impossible to read anything off the monitor.  I do have an external monitor connected via DVI port though.  I know there's a way to switch things so that I can close the lid on my PowerBook and then work off the external monitor; however right now the Mac still thinks there are two monitors and is just making one big desktop.  How do I tell the Mac to only</a> use the external monitor?  Keep in mind that I can't see the primary display so I can't use any of the menus, go into System Preferences, anything like that.  I can use keyboard shortcuts though.Thanks for any help!</blockquote>