Mike,
I went through the class hierarchy and could not find any code in the beforerowcolchange. I should also mention this grid does have some columns that are calculated values, not bound to data. Also, this grid is part of a form with other controls, hence the need to refresh afterrowcolchange.
Everything works in this form, other than the flashing is starting to annoy the users.

Thanks

>Hi Randy,
>
>>LPARAMETERS nColIndex
>>=LockScreen(.T.)
>>DODEFAULT(nColIndex)
>>=LockScreen(.F.)
>
>Thatrs what I was about to suggest, then saw trhis post. Hmm, try the same with BeforeRowColChange. Thats all i can think of off hand. Have you posted a seperate thread for this?