We have about 500 users in an Windows 2003 server environment connecting to an Exchange 2003 server using Outlook 2003 on Windows XP workstations. For one of our desktop users, each time she changes her network password Outlook then prompts for her user credentials. She enters her new password, checks the box to save the password, and the prompt does not return until the next password change. The user’s Outlook is configured with only the Exchange Mailbox (no POP accounts), it is not in cached mode, and it is not configured for RPC over HTTP. Outlook security settings are not configured for encryption or to prompt for user name and password. I have tried changing the “Logon Network Security” option, but the behavior continues to be the same. I have searched the MSKB, but can not find any articles specific to this issue. I will be happy to award points for an answer that solves this issue. Thanks, in advance!