Hi!

In addition to Tommy's suggestion, LockScreen could be alteren in any control method, class code etc. if it is written innacurately, so you set it to .T., it is set to .F. somewhere during the process of refreshing, so the rest of the process shows flickering. I usually wrap code into LockScreen by following, safe, way:

local llLockedHere
m.llLockedHere = !thisform.LockScreen
thisform.LockScreen = .T.

... && do refreshing

thisform.LockScreen = !m.llLockedHere && if locked here, than unlock. If not - remain locked for
&& locks in outside routines

HTH.

>Hi
>
>I have an intermitten problem, and I think, but am not sure, that LockScreen may be inefficient.
>
>In my refresh I sometimes have objects that need to be hidden, and sometimes I can seem them flash visible, then invisible, even though I am locking the form with Lockscreen.
>
>Has anyone else experienced this? or does anyone know of a cure?
>
>Thanks
>Kev