Exchange Move Mailbox MAPI Error

[BKGarry]

Ok this is doing my nut in now.

I have tried every solution out there to this, has anyone else got any ideas why i can't transfer mailboxes from one server to another on exchange 2003, with the following error
Event Type: Error
Event Source: MSExchangeAdmin
Event Category: Move Mailbox
Event ID: 1008
Date: 22/02/2008
Time: 10:13:36
User: N/A
Computer: MSERVER
Description:
Unable to move mailbox 'AllenS'.
Error: An unexpected, unknown error has occurred.
MAPI or an unspecified service provider.
ID no: 80040115-0000-00000000

For more information, click http://www.microsoft.com/contentredirect.asp.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

[BKGarry]

also got this now

Event Type: Error
Event Source: MSExchangeDSAccess
Event Category: Topology
Event ID: 2102
Date: 22/02/2008
Time: 10:15:14
User: N/A
Computer: MSERVER
Description:
Process MAD.EXE (PID=2008). All Domain Controller Servers in use are not responding:
admin.northfleet.int
primary.northfleet.int
printers.northfleet.int


For more information, click http://www.microsoft.com/contentredirect.asp.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.