This may or may not be a useful suggestion, but have you tried running <blockquote style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;" class="gmail_quote">PKG_CONFIG_PATH="$PKG_CONFIG_PATH:/usr/x11r7/lib/pkgconfig" ./build- from-tarballs.sh -m /home/hannes/Mesa-1.5/ -e /usr/x11r7/ >logfile </blockquote>2>&1 If you reeeaaally really want to get the new xorg running, and don't have any other special requirements, you might try a distribution that supports building it for you automatically, like Gentoo. You can do all of the building from within a terminal while running Kubuntu by using chroot to build it within the Gentoo partition. I have a similar setup to this, and have scripts on either distribution to mount the other distro's partition, bind /dev, /sys, /tmp, and then chroot in for me. Usually I'll do this from within Ubuntu if I'm making drastic changes on the Gentoo side and don't want to be running the system while I make the changes. Simon