>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