Actually, I had similar code in the VALID for the applicable cell. I ASSumed it might be more efficient for it to be updated only when the user changed something, which is what VALID's are for, right?

- Gerry

>>I did. Here's the code from txtDebit.GotFocus :
>>
>>THISFORM.OrigDebit = THIS.VALUE
>>
>>- Gerry
>
>Now the code in LostFocus? Depending on Debit or Credit column:

>local lnDiff
>lnDiff = This.Value - ThisForm.OrigDebit_or_Credit
>if lnDiff <> 0
>   ThisForm.txtRunningTotal.Value = ThisForm.txtRunningTotal.Value <b>+ or -</b> lnDiff
>endif