OpneGL after upgrade to Fedora 11 not working

[Martin (KDE)]

Hallo there

after a upgrade from Fedora 10 to 11 my openGL no longer works as 
expected. The windows flashes and disapears, Icons are missing, 
decoration borders are missing, buttons shows up and disapears. With 
F10 everything works as expected. I have tried xrender and it works, 
but it is slower as openGL. Currently I have disabled the openGL 
stuff.

My hardware: ATI 9200SE on a pentium 4.

Any tips?

Martin