Penumbra Scrolling Graphics Problem

[Gert]

apt-cache policy xserver-xorg-video-intel
for me it gives 2:2.63-0ubuntu9.3

Linux kernel version:
cat /proc/version
2.6.28-14-generic

you can also look at /var/log/Xorg.0.log (I've attached mine, so you can compare)

my xorg.conf is empty in Ubuntu, so xorg probes everything itself, I don't run compiz.