At this time I can not say, because I'm using Ubuntu 8.04LTS until now I can't reproduce this symptom with this version.
But I'll testing with a Live-CD (I'm currently loading/burning a Image of "ubuntu-8.10-alternate-i386.iso"
My speculation is the buggy intel-graphics-driver in Ubuntu6.06LTS.
At this time I can not say, because I'm using Ubuntu 8.04LTS until now I can't reproduce this symptom with this version. 8.10-alternate- i386.iso"
But I'll testing with a Live-CD (I'm currently loading/burning a Image of "ubuntu-
My speculation is the buggy intel-graphics- driver in Ubuntu6.06LTS.