Do just as I suggested above, but at the command line, type:
telinit 3
That should change your runlevel from 5 (graphical) to 3 (text). Then run "sax2" again. When you are done configuring your X server, simply run the
telinit again with 5 instead of 3. It's also possible to edit a file in order to change the runlevels. That file is
/etc/inittab
Stick with the first method though. I suggest this because:
1 - You will only need to change runlevel this time...
2 - If you screw up that file, it'll be hard to fix. Changing runlevel with the telinit or init commands will restore the runlevel back to normal after the reboot.
I just pointed the file because it's good to know where things in linux are and what they do
. If telinit command fails, try "init" only instead of "telinit"
Good luck and lemme know if it works please
Regards!