>Hi John,
>
>TableUpdate() is probably returning false. You should probably never do an =TABLEUPDATE() and instead do an IF TABLEUPDATE() to see if it takes. If the table update is failing, do an =AERROR(laError) and look at the laError array to see what went wrong.

Hey Mike, I'm back with the same problem. You're right =TABLEUPDATE() is indeed failing although I can't understand why. I've done =AERROR(laError) but the error says "Table buffer for alias 'vclientcosts' contains uncommitted changes." I know it contains uncomitted changes, that's why I'm issuing a =TABLEUPDATE() to update it! I feel like I'm going around in circles sometimes. How can I get to the real reason why it's failing?