> Does anyone notice weird visual artifacts in X with recent distros? I see it > in both Centos and Ubuntu. For instance, when I alt-tab in KDE, the list of > windows doesn't appear, or when firefox refreshes the screen, there is a > noticeable delay and diagonal streaks of color like a messed up pix buffer > for a flash of a moment. > > <More details ...> > I recently upgrade Fedora 6 -> Fedora 7 -> Fedora 8, and was excited to play with the new 3D desktop effects. Along the way, I did something horrible that made all of the title bars disappear, and kinda hosed the environment (Gnome) in general. A quick search resulted in: http://linuxfud.wordpress.com/2007/02/14/how-to-reset-ubuntugnome-settings-to-defaults-without-re-installing/ http://ubuntuforums.org/showthread.php?t=419162 The short story is that there are a pile of environment settings in /home/<user>/.* directories. Removing these allows you start over. Note that if your desktop is heavily customized, you may wish to proceed carefully (I had to reconfigure evolution, but wasn't a big deal) and "mv .<blah> .<blah>.bak" one at a time until things look better. After doing this, I (somehow) avoided whatever I did the first time (I believe it was installing/fiddling with emerald); and am happy to report that the desktop is very well behaved with respect to screen draws. For reference, I'm using kernel.x86_64.2.6.23.1-42.fc8 with kmod-nvidia.x86_64.100.14.19-18.lvn8 on a GEForce 6200 something or other. I hope this helps! Josh