Sles 11 and ZCM 11.2.1

When deleting managaed workstations from ZCM console, it takes a very long time to delete items.. everything else seems to be snappy.. This started appearing after we upgraded to 11.2.1 after we had been running 11.2

I just asked it to delete 30 managed windows workstations.. after telling it to delete them, i do a refresh and about ever 5-7 minutes it deletes them one by one...takes over a hour to finally delete all 30 devices... anyone else having this issue and any ideas on how to speed it up ???