have an intermittent problem with a regular listbox. sometimes
when user tries to make a selection from the listbox, it appears
that the mousedown event is recognized (because it hightlites the
listitem) , but the mouseup event seems to be lost (because
the when the mouse button is released, the highlite moves with
the mouse, even when the mouse is not over the listbox). sometimes
after maybe 30 or 40 seconds, the currently highlited listitem
will be selected and the highlite will quit following the mouse
movement.

this is VFP6SP5 on WIN95. i don't have any code in any listbox
event ... i just retrieve the value later, when an OK button is
clicked. this is happening with all 4 computers on which the
app is installed.