Hi, I am testing the recovery storage group in exchange 2003, I have read the document "Using Exchange Server 2003 Recovery Storage Groups", after I created the RSG on the server and waited for replication, when ever I try to add a mailbox store to the recovery storage group the system manager hangs till I have to end it manually, no errors in the event viewer or windows, I deleted the recovery storage group and recreated it with the same behavior happening. I have exchange 2003 (version 6.5 build 6944.4) , 4 storage groups and multiple mailbox stores in each storage group. What could be the problem? Thanks r.