Help! Keyboard and Trackpad not working!!!

Hey all,
I have a generic year old ish intel White MacBook and while on loan to a friend, apprently she left it in perfect working order, came back and neither the keyboard or the track pad mouse & click wasn't working, we are taking it to the apple store t have it looked at and she is offerng t cover anyrepair charges, but I would just thought. I'd ask here if anyone has any ideas.
I even tried toggling the caps lock and the light didn't even flicker.
also I have tried resetting the PRAM and NVRAM, and upgrading to Snow Leopard to no avail, is there any thing else i should try before taking it to the apple store?
~Jen~

You could try plugging an external keyboard in it to test, but it still sounds like a hardware issue.
Dave M.
MacOSG Founder/Ambassador  An Apple User Group  iTunes: MacOSG Podcast
Macsimum News Associate Editor  Creator of 'Mac611 - Mobile Mac Support'

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