I believe what the earlier poster meant was to remove ALL updates and then re-install the servicepack plus any additional updates that may be in the cache. That should clear out this "rouge" update that is reported in the GUI.
This can be done by going in to the Base folder and running the RemoveUpdates.exe binary. This will give you the option to remove all updates. Once complete, reinstall all updates by either pushing them out from the GUI, or by running the InstallUpdates from the SP4 CD or from the root of the downloaded SP4 folder.
You do not have to re-install the commcell.
Ernst F. Graeler
Senior Engineer III