Keyboard Not Fully Responding

Posted:
in Genius Bar edited January 2014
Hi all,

A couple of days ago, the keys M, J, U suddenly stopped functioning on my friends G3 Graphite iMac. The rest of the keys and mouse all work fine. A day or so later he got an error message warning him that some of his usb ports are out of power or something to that extent. He is not connected to any sort of usb hub and claims he didn't do anything differently that could have brought up this error like spilling stuff on his keyboard etc... I'm working on finding someone else with an external iMac keyboard to see if that helps, otherwise i have never heard of this kind of thing before. Any help/suggestions are greatly appreciated. Thanks a lot
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