Backspace key not working - Macbook Pro using Mavericks

I've got a Macbook Pro (early 2011 model) which I upgraded to Mavericks earlier this year and all has been working fine. Over the past few days I noticed my backspace key was playing up (sometimes it worked, other times I had to press hard a few times before it would work at all) until today when it decided it would not work at all. I have already checked in System Preferences and restored defaults as well as resetting the PRAM but to no avail so far. Is there anything else I can try or will I need to take it back to the store and get it looked at?

Since you reset the PRAM, I would take it in for diagnosis.
Barry

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I am trying to work out is the problem with the mountable external hard drive OR is it the hard drive is not compatible with my computer? Im guessing it must be hard drive. Would it be better to use a USB pen drive as the external hard drive is quite old?
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Make a "Genius" appointment at an Apple Store, or go to another authorized service provider. You may have to leave the machine there for several days.
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Message was edited by: EZ Jim
Mac OSX 10.8.1/span>

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Backspace key not working - Macbook Pro using Mavericks

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