Check to make sure you don't have any code hiding in your mouse events of bot the combo and the timer and also make sure you don't have any code in your procedures that is reassigning the focus on you.
Best of luck
--Stephen

>Hi to all
>
>Sorry by my english!
>
>I've a great problem with my combo boxes.
>I've a combobox class that only have writed the both When and Valid Methods and allways return .T.
>
>When the combos got the focus, if I use the keyboard to change the value, it work ok, but if I use the mouse to open the list and select an item, the value don't change and the focus go to the object that is above of the combo.
>
>HELP ME PLEASE!!!!!
>
>Note: I've this problem since that I add a timer class object to _SCREEN with the Interval property equal to 500
>
>(I need to solve this problem in very very short time, please, help!)