>I have a grid displaying currency in a column where the control for the column has an input mask of "$ 999.99".
>
>When you hover the mouse over any of the rows for that column, VFP is displaying a tooltip of "900.000" (e.g. for a row that shows $900.00).
>
>How can I disable this tooltip from showing up?

To expand on Ed's idea you may want to do it in this column MouseEnter/MouseLeave events (restore in MouseLeave). I'm not 100% certain these two are the only methods you have to worry about.