Keyboard input from numbers 1-0 not recognized

On my ibook G4 which I recently started using again, I've noticed that now all input from the "number bar", that is, digits one through zero, is not recognized, that is, it's as if I weren't pressing it at all. I've gone through system preferences, reset everything to default, and I've even done three separate PMU resets, but to no avail. Curiously, all the F keys function. I have access to some number input with the "number lock" feature, but any number that resides on the actual number bar like seven eight or nine cannot be entered. I have no problem with ~, -, +, or delete, either. Any help to point me in the right direction would be greatly appreciated.

Hey Danger and Welcome to Apple Discussions,
It sounds like the horizontal trace that links the numbers together has developed an open. I know of no way to repair this and the solution would be a replacement keyboard. Verify the problem isn't software related by plugging in a USB keyboard and checking function.
Richard

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}Message was edited by:
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Keyboard input from numbers 1-0 not recognized

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