HELP! Internal Keyboard doesn't work

I had my macbook pro 6 months ago, and one month ago I plugged in an imac keyboard for using adobe illustrator and photoshop. When I unplugged the external keyboard the internal keyboard of the macbook pro stopped functioning. The commands buttons, letters, enter, and many other keys except for the expose and the top keys. I tried everything and nothing seems to fix it.
please help !!!!

Hi matrance,
have you tried:
1) resetting the PRAM (hold down the command option p r keys while starting up the computer. Wait until the chimes sound at least twice )
or
2) resetting the SMC ( see http://support.apple.com/kb/HT3964 )
If neither of these fix the problem then it is probably a hardware issue. If the computer is only 6 months old it will still be covered by warranty for hardware repairs, so take it to an Apple dealer if possible.
Cheers
Rod

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it starts automatically to cancel all I have wrote without I have pushed "del"
sometimes it automatically locks and no one key can remove the lock
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Add one thing -- no matter how tempting, just one.
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HELP! Internal Keyboard doesn't work

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