Moving mailboxes between Exchange 2003 servers in same domain

Here goes,

Server1: Exchange - 20 or so mailboxes
Server2: Exchange

Both servers are domain controllers

I am doing the transfer of all malboxes from server 1 to server2 remotely this weekend.

I have just piloted one mailbox from server 1 accross to server 2 - it was successful.

However, my problem is my outlook didnt automatically update the profile, this is a big problem for me obviously doing this remotely.

The way i am testing it, is i have VPN connected, setup outlook, connected to pilot mailbox on server1, exit outlook and vpn, login to server remotely, transfer mailbox from server1 to 2, reconnect VPN, open outlook - just says trying to connect in bottom right hand corner. It seems to connect for a split second and then disconnects.

When it connects and disconnects for the first time, i then go into the mail properties and can see that the server has changed from 1 - 2. however myoutlook is dosconnected. i then try and reconnect it, it fails straight away, i check the mail properties again, and its changed back to server 1???? its mind bogglings

Event log on the new exchange server gets this:

Event ID 1022

Logon Failure on database "First Storage Group\Mailbox Store (SERVER2)" - Windows 2000 account MYCOMPANY\USER; mailbox /o=First Organization/ou=first administrative group/cn=Recipients/cn=USER
Error: 1144


I know im not logging the whole computer onto the domain, but these outlook testing purposes it should matter should it?

how can i troubleshoot why this isnt working easily,

thanks