Novell Open Workgroup Suite Small Business Edition (NOWS SBE) 2
Looking at the Simba Web Interface, the updates pane shows continuously busy, that the server is checking for updates, and never completes. Restarting the server has no affect on this.
Check for the existance of the file "/var/lib/simba/sbs/conf/updating.txt" and remove this if the file is present.
Also see TID 7002144 - NOWS SBE2 - WebUI Does Not Show Updates for additional information regarding a possible related problem if this is not a fully patched server.