Hi again!
Thanks for your response. I haven't tried the full Xorg with TC or MC but I also have the last version of ubuntu installed and it works fine. I always use the depth of 16 and that is what this box can do also with windows and the original drivers. But, as I mentioned, I have never bothered with trying out the full Xorg as I am used to the little problem I have with xvesa and it doesn't bother me much. I guess that I have to conform with xvesa and it's little snag.
Have fun building new extensions for TC and MC,
meo