Originally Posted by Linuxhippy
this is a (known?) driver bug, happens on my GF488Go/Linux-2.6.9 too.
Since GTK is not as advanced as QT and does not use RENDER althought its available the bug does not occur, turn it off and it will work fine.
(I went back to 6629 since it works stable and I have FULL ACCERLATION withought drawbacks)
We did you get the idea that GTK is not as advanced as QT, the theming is far superiour and RENDER has been used in GTK for sometime now.