We shut down our entire server farm in anticipation of Hurricane Charley
hitting the Tampa area.

Since restarting everything, we have one group of IM users that cannot
INITIATE an IM conversation. They are all located in one PO (we have four).

Their mail is received/sent with no problems.

If someone from another PO intitiates a conversation, it can proceed
normally. Removing and re-adding contacts to IM doesn't work (can't be
done actually. When a name is typed in as a new contact, it too is grayed

Any ideas? Thanks