Creating Acct w/ YAST1 crashes box!

Hi: I decided to create an user account for a friend, so he could store all his info there. After I created the account with YAST1 and logged in, the mouse pointer would go crazy. Kicker would flop around in KDE. Also The mouse would dissappear. I had to use alt-ctr-bcksp to get out. If I delete the user account (with YAST1) things go back to normal This is a stock install; no recompiled kernel, KDE 2.01 and it has the updates. What could be happening? TIA. -- Cheers, Jonathan