Inge,

This error isn't ODBC related. Check Re: WinXP & Grid Heights Thread #707334 Message #709858.

>My .exe does not work on the new HP d530 computer (with XP pro.).
>
>I had to download & install VFP ODBC driver on all XP computers, & after installing the driver, usually everything runs fine, except on our newest computers, HP d530 with XP pro. The .exe will run fine up to a point where data is retrieved using ODBC. In this case, the error message is: Program error: error with grid1 - height: expression evaluated to an illegal value. I'm guessing that the program is trying to populate the grid with data (retrieved with SQLconnect & SQLExec) when the error occurs. The .exe runs fine with the 1st 2 screens (no data retrieved from table on these 2 forms), & when it is trying to load the 3rd screen (needing data from table, retrieve with SQLconnect/SQLExec), the error message pops up.
>
>I checked the display setting & it seems fine (same as other computers). Can anybody help? I have no idea what to do!!!