Empty boxes under KDE popup windows

[Rex Dieter]

On May 11, 2010, at 3:58 PM, Orion Poplawski <orion at cora.nwra.com>  
wrote:

> Every once in a while with various hardware I see empty boxes left  
> under where
> a KDE popup window appeared and went away and the app doesn't redraw  
> right
> away.  Is there a general bug filed somewhere for this?  What is  
> responsible?
>  Individual video drivers?

Video driver generally

Rex