Version: ismeretlen (using 4.2.67 (KDE 4.2.67 (KDE 4.3 >= 20090318)) "release 1.3", KDE:KDE4:UNSTABLE:Desktop / openSUSE_11.1) Compiler: gcc OS: Linux (x86_64) release 2.6.27.19-3.2-default When compositing is enabled, all the fonts are disappearing after a certain time (~10 minutes). Restarting plasma-desktop solves this. I know this bug since 4.0. I'll attach a screenshot (with K menu opened and a notification in the lower right).
Created attachment 32369 [details] Desktop in ruins
Created attachment 32370 [details] NVIDIA bug report file
this is a graphics driver bug, nothing we can something about in plasma. sorry :/