Here's a strange one...
I have completed the migration to SBS 2008 from SBS 2003, resolved all the issues and am now in the process of moving mailboxes.
When I run the Move Mailbox on the Legacy Mailboxes from the Exchange Management Console I am having these issues:
If I open the Exchange Management Console and move a single mailbox it works the first time, if I immediately move another single mailbox it works as well. If I try a third it gets to the last screen, Move Mailbox, and looks like it's processing, I get the timer and the progress bar is moving but it never does anything, never opens the mailbox, nothing just sits there. I let it sit for over an hour and nothing happened, no error or anything.
If I try to move more than one box at a time, select all Legacy Mailboxes and move them it does the same thing on the first mailbox only.
I have to click Cancel and wait a few minutes for it to finish. If I try to move a single mailbox immediately it will do the same thing.
In order to move any mailboxes I have to exit out of Exchange Management Console and then go back in, Then I can move one at a time. But only the first 2, after that it "sticks"
I only have 36 mailboxes to move so I am muddling through it. If anyone can help that'd be great!