Take a look at Thread #457316.

>Hi all,
>
>I have an extremely frustrating issue, maybe there is a known bug... VFP6 SP5
>
>I have a listbox (on a pageframe) that has a cursor as a rowsource. It seems that whenever the listbox loses focus, the items that have been selected (highlighted) in the list, deselect (unhighlight). The record pointer in the cursor does not get moved, and even if it did, I would think that the selected property of any item should not be affected.
>
>Has anyone experienced this behavior and, hopefully, have a fix?
>
>When the listbox was previously populated with via AddItems, we never had this problem. Is there a known issue that I can't find regarding listboxes with a cursor RowSource?
>
>
>Thanks,
>- Brian