Hello Everybody Your suggestions, David, proved to be quite useful! I can work again at the 9.10 partition of my PC. Thank you very much! > 1. sudo apt-get remove xserver-xorg-video-intel I have done so. 2. Download (...) For 32 bit: <a href="http://launchpadlibrarian.net/25090475/xserver-xorg-video-intel_2.6.3-0ubuntu9_i386.deb" target="_blank">http://launchpadlibrarian.net/25090475/xserver-xorg-video-intel_2.6.3-0ubuntu9_i386.deb</a> and install it, even if it is complain the package is old.... This I did as well. For now, it seems to work. After finished the installation, run: <div class="im"> sudo dpkg-reconfigure -phigh xserver-xorg </div>and reboot. Also after each reboot, the system keeps working now. Hopefully it works. If it works, lock the xserver-xorg-video-intel to avoid being upgraded back to latest version (...) sudo su echo xserver-xorg-video-intel hold | dpkg --set-selections (...) I also managed to follow up this advise. For now and probably the coming months I am fine. On the other hand, I am wondering whether it could be useful to file a bug report about this experience: in such a way that similar problems can be avoided for the combination of video cards like mine and future versions of xorg.conf. My hardware is old, but not extremely old: 2005. Finally, one 'typical KDE' question remains - relevant for those with specific Kubuntu experience. The widgets at the panel are quite small. The same applies for icons and texts in applications without any possibility to 'zoom in'. Is there any possibility to zoom in everything till about 110% compared to their size now. Respectfully yours, Bas.