This problem started about a month ago. When using my Outlook 2010, I started getting prompt for a password. I would put in the password, but it would continue to ask. I changed my password; created a new profile; repaired the .ost file and even when into my profile and changed the file with the very long name to old and re-opened Outlook. The problem still exists. I have tried everything that I have seen on-line. Does anyone out here have any other suggestions?