Have you tried the Mac forum?
http://reviews.cnet.com/5204-6126-0.html?forumID=10&start=0
I'm the only person in the office today and I don't know the number for our tech support (I'm new and not Mac savvy).
Our G5 OSX won't start up. All I get is a screen with a folder in the middle and an alternately flashing face and question mark.
Can ANYONE please help me????

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