How to rescue a bad X configuration during Suse 9 install

During my first Suse9 install I screwed up X. During the configuration of X the installer suggested to me: vesa 1600x1200@75. I thought I was smarter and went to the manual configuration and selected my Nokia 445Xi monitor from the list. Then it tried to switch into the new mode and gave me buttons to adjust the settings (centering, width, etc.). I did that and after I was satisfied continued the installation. When X was supposed to start up for the first time, my screen showed only "out of synch". The way how to repair this is: Reboot in safe mode; change in /boot/grub/menu.lst vga=xxx into vga=normal and remove the "showopts" entry. Reboot again in safe mode, change to runlevel 3 ("init 3") and execute sax2 --vesa 0:1024x768@75. Then I again selected my Nokia monitor but didn't do the adjustments (I centered and sized the image only via the front panel knobs on the monitor). And everything is fine again.