SUSE 9.1 pro.
When I boot the system and log into X as root then I see yast window instead of the desktop, if I close yast then x restarts and shows me the login prompt again, if I log in as regular user then X behaves.
Now if I kill X, then go to init 3 then do sartx then I can sse root GUI desktop, but if after that I do init 5 then it shows me the login and then again I login as root and see only yast as a desktop.
Any ideas how can I have to root X GUI back?

It was OK untill yesterday and the only thing that has changes was the online security update, but then again - after the reboot it was fine.