Wired keyboard-number pad&right arrow keys not working-serial # help!

Hello to whomever reads/replies -
I have a wired keyboard for my iMac(it's not the aluminum imac, but the version before it with the keyboard and mouse that came with it). I got this keyboard June 2007 after the original keyboard sent to me had problems with it with some keys not working properly. And now about a week ago my right arrow key and the zero, decimal point, one, two, three and enter button on the keypad stopped working out of the blue. One night they worked and the next they didn't with nothing being done different, nor was the keyboard stored differently.
I've cleaned the keyboard inside and out twice and tried pushing the little squishy thing under the keys when you pop them off and there's no response with those being pushed either so something's got to be wrong with the keyboard itself.
Also, when I go online to look up the warrenty on this keyboard, #1 i can't find where it tells me where the serial number on the **** WIRED keyboard is, just gives me where i can find it on the WIRELESS keyboards. Ugh. So I looked under my keyboard and punched in the numbers and letters that i found on a little silver plate just below where the wire and USB ports are in the top of the keyboard and I get an 'invalid serial number' error message.
So.. could anyone help me with these problems? I'd really rather not call tech support since it took me over two hours to explain to the man that I spoke with last year about my other keyboard and I just don't have the time! Thanks in advance!
Sharon

Hello sharon:
Welcome to Apple discussions.
Run, don't walk to the phone. Call Applecare and indicate you have a warranty problem. The KB is (or will be shortly) out of warranty. It may take you some time, but it may save you some money in the long run.
Incidentally, it appears to me that your KB is, indeed, broken.
Barry

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