It may be a video problem. My screen has a listbox and some labels. After clicking on the listbox a couple of times, the problem appears. This happens with the graphical background or the default VFP one (none). It only happens with transparent labels with thick typeface (bold or regular larger fonts). Calling "Thisform.refresh" by itself does not cause or cure the problem. I only see this behaviour in my VFP app. I'll test it on other computers with different video cards.

> I can't see how this could be anything bt a video problem. I have the exact same software config as Jose, and I have never seen it. I would be aiming my
investigation efforts at the hardware side.