I have read many of the articles about similar issues, but this situation isn't addressed.
Exchange 2010 hosted locally. Only one user out of 110 has this situation: After he logs in to his domain account and opens Outlook he is able to read email and calender items normally. However, the first time he creates a new email or replies to one he is prompted to enter his password. He isn't prompted again until he closes and reopens Outlook. Oh, and he happens to be the CEO. His workstation has Windows 7 Pro and Office 2010 Pro Plus.
Any thoughts?