>>instead of putting it in the input mask, you can try it in the format (@A)
>
>Hi Evelyn,
>
>I Don't see how that would work.
>
>
>What I want is an InputMask of 'SA99999999' with the A as an actual 'A'.
>
>Marshal

If it's always 'SA', then I think you might be stuck with chopping it up. Put a label in front of the TextBox that shows 'SA', and use the rest as the input mask for the textbox.

Alan