This is actually a good reason to not install to many other apps (even VMWare related) on the same VM as vCenter. I ran into this problem as well since I installed the Emulex OCM for VMware (uses a tomcat service).
The KB for this issue is out.
http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=206059...
