Hi,

just as a note: the latest ubuntu linux ships with an opengl accelerated 
window manager snd some Squeak images, like croquet or squeakland 
display weired colors dependent on the background.

Workaround: One has to change the display depth in the appearance menu 
from 16 to 32 to fix this.

System: ubuntu 7.10 beta
graphic card: intel

- Jens -