I have a strange problem with Outlook HB 2010 on XP-clients in a Windows 2003 AD-Domain (all german language):
The Outlook-profiles have two IMAP-accounts, both working fine with same configuration in OL2010 outside the domain.
Also they working fine with a local user on the XP-client.
AND: The configuration is working fine in Outlook 2003 and earlier! If the accounts are configured in OL2003 and used after installing OL2010, they're working also fine.
Only new IMAP-accounts in OL2010 shows the error 0x8004010F - Outlook-datafile could not be accessed (I dont know the exactly englisch error message)
There are no GPO for Outlook
POP3 is working fine in any configuration.
When the Outlook-profile is newly configured, the IMAP-accounts are working till the next startup, then the same error occurs.
When starting, Outlook shows the IMAP-account two times for a few seconds.
At the same time the IMAP-file is created with 256 KB, but a few seconds later Outlook use a copy xxx(2).pst for downloading the mails.
I think, that something blocks the first file, but I've try to disable windows search and virus-scanner for this file-type with no result.
I've also contacted the Microsoft-Office-support - with no solution.