Is it doing it in all programs?
If so, then try swapping keyboards to make sure it's not a hardware problem.

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Herb Tyson MS MVP
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>
> how 8do I 8dis`able wh`at4ever this is 8doin5g? see,
> when i type 8d, it' `a 8d plus 8d. see, 8d8d8d8d
> or `a`a`a`a. help.
>
> non`a