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Helpful answers
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Aug 24, 2011 11:43 AM in response to jimboboby BGreg,With the external monitor connected, have you tried pushing the F7 key? Also, this Apple note may help: http://support.apple.com/kb/HT3131
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Aug 24, 2011 6:49 PM in response to jimboboby Allan Jones,I find you need to have the external display connected and ON when you start the computer. That way, the computer polls the display and defects its possible resolutions. Also, the monitor need MultiSync technology. Many older monitors intended for PCs don't have that ability.