>I need to initialise the textbox memory variables to either
>a Character/Numeric fields. Because when I perform a
>arithematic calculation the system will prompt error message
>"Type Mismatch" if the textbox is empty.
>Should I and How to initialise these memory variables for
>the textbox values? Thanks!
>-Alvin

I guess you can change ControlSource programmatically but anyway the nicer mean is to use STR or VAL functions when you do calculations to avoid Dtata mismatch.