Didn't have Linux running when I was writing before so here's a bit more help. If you get back to the text based window as above run 'yast' as root user. From there choose... System -> System Services (Runlevel) -> Expert Level and change the default runlevel on startup to 3/Full multi-user with network instead of the default 5/Full multi-user with network and display manager. This allows you to start up without the screen corrupting. Bear in mind that, even if you chose another distro of Linux this could well happen anyway because the problem is your XWindows installation. Like I said, run the sax2 setup tool and try different settings for sax2, (sorry, not sax, as I said), should have mentioned that before Once you've got XWindows running you can put the runlevel back to graphical again.