After a successful SBS 2003 - SBS 2008 migration, Outlook clients experience the following in this order:
1. Start Outlook
2. User is prompted for SBS2003 credentials.
3. Dismiss prompt.
4. Outlook status says "Need password"
5. Clicking on "Need password" then "Type Exchange Password and Connect" returns the prompt for SBS2003 credentials.
6. Dismiss prompt.
7. Outlook status becomes "Connected to Microsoft Exchange"
I've removed "HKLM\SYSTEM\CurrentControlSet\Services\NTDS\Parameters\Src Root Domain Srv" which pointed to the SBS2003 servername, FILESERVER, but this hasn't helped.
So what's telling Outlook to look for the old SBS2003 box?