Thanks for your help so far.
I did as suggested and typed in startx at prompt and this is what I got:
_XSERVTransSocketINETCreateListener: ...SocketCreateListener() failed
_XSERVTransMakeALLCOTSServerListeners: server already running
Fatal server error:
Cannot establish any listening sockets - Make sure an X sever isn't already running
When reporting a problem related to a server crash, please send the full server output, not just the last messages.
This can be found in the log file "/var/log/XFree86.0.log".
Please report problems to firstname.lastname@example.org
Xlib:connection to ":0.0" refused by server
Xlib: Invalid XDM-AUTHORIZATION-1 key (failed key comparison) giving up.
/usr/X11R6/bin/xinit4: unable to connect to X server
/usr/X11R6/bin/xinit4: No such process (errno 3): Server error.
I cannot send the reports to Suse because I can't get the thing running.
Again Many Thanks for Your Help Mara