ATI-Card shows Window-Buttons false, if Desktop-effects enabled

[Roger Grosswiler]

Hi,

This weekend, i got also F10Beta on my working-machine :)

it worked out of the box, but i still work on details. One of the first i saw was, that
if i enable desktopeffects on that box, there is a space between the 3 buttons
(minimize, maximize, close), the size of the space seems the same as the button itself.

Roger