>>>The BackStyle property for both textboxes is Opaque....
>>>
>>>Steve
>>
>>Steve,
>>
>>Is the Sparse property of the column set to .F.?
>
>Jim,
>
>Yup, the column builder method sets all columns .Sparse property to .F.
>
>Steve

I've got the same problem and the "best of all" is that behavoir doesn't happen all the time...