KDE4 almost unuseable
I've just updated my system to a GeForce-8500 and I am experiencing terrible performance problems for desktop applications.
I am running Fedora8 (with latest updates) + KDE4.0.2 + FireFox3B4.
Resizing/Painting performance is especially bad for all KDE4/QT4 applications, GTK is not good but better. FireFox3 has problems when scrolling on webpages that have transparency or a lot of graphical elements, top shows most time is eaten by Xorg.
KDE3/QT3 applications repaint and resize fast without any problems.
Any ideas what could be the problem?