There's a bug that gives you the xdm display manager instead of the normal kdm
To solve, do this: log in as user root and run the command 'rcxdm stop'. Then run the command yast.
Then go to System->/etc/sysconfig editor, and then to desktop->display manager->display manager and change the value to kdm.
Finish and quit out of yast and run 'rcxdm start' and you should see your regular login screen again
thanks anders. i've updated five of my machines to 9.3 and just started having this same problem on two of them last night. i was going to ask about it but now i just get to say thanks! fyi: the two machines i'm having problems with are the only two of these five that authenticate using NIS. my first thought was that this was somehow related to the problem but apparently not. thanks again.