Sometimes, text is rendered light gray-ish instead of black. That applies to some buttons, menu lables, even to text in different web browsers. My font rendering is set to "best form", but other settings gave the same result. Now I set it to "black and white" but I kinda doubt that works. The fun thing is, that sometimes when the text has to be redrawn (e.g. because a window moved over it and off again), the text is fine, again.
Description: Ubuntu 9.04
The whole thing is running on an iBook G4:
Linux version 2.6.28-6-powerpc (buildd@adare) (gcc version 4.3.3 (Ubuntu 4.3.3-5ubuntu4) ) #20-Ubuntu Fri Apr 17 08:30:40 UTC 2009