Let's just say some lucky bastard out there had a 17" PowerBook, and he wanted to connect his 23" Cinema HD Display to it.
So he buys the DVI-ADC adapter, but can he plug in the Cinema Display and work on it AND close the PowerBook without it going to sleep?

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Comments
check kbase 88064
in short what u have to do is to close the pb, connect the monitor and then connect the keyboard.