How to restore standard window manager

Hi,
I installed compiz on suse 11.2. And in console mode I typed:

compiz --replace

Now I have compiz as a window manager I assume?
But I really want to return to the window manager what was standard on suse when I installed it.
Is this possible?
thanks in advance.

You need to say which desktop.

I’m using Kde.

I suppose you mean to change the displaymanager back, you can use yast to do that:
yast>system>editor for /etc/sysconfig files>desktop>display manager>displaymanager, select the proper one for your system.
If compiz have locked you out of graphics mode you can still use yast in text mode to fix it.