We are in a transition phase from Exchange 2007 SP2 to Exchange 2010 SP1. I have update rollup 2 installed on all the servers. What I noticed with 2010 is the Console is extremely slow. When I try to grant something like Manage Full Mailbox Permissions to another mailbox, it starts a search procedure that lasts for over a minute and it looks like it tries to populate every object in the Forest. We have two Domains. Our Forest Root which is pretty much empty and our production Domain which is a child of the Root. I have the Console configured correctly I think as far as the Recipient Scope. I have it set to Global Catalog and View all recipients in the forest. Its pointing to a Domain Controller in our production Domain. I tried the other configuration which is View all recipients in specified organization unit and then selected our production Domain pointing it to a loca Domain Controller and it did not help. Is there some kind of hotfix or update to resolve this?