I've seen several people with this issue, including myself, and have yet to
see any answer other than to delete the account and start over. This is not
a good solution for any user. What causes this issue? How can it be
prevented? How can it be fixed? Some type of acknowledgement would be
appreciated as it does seem to be be kind of a 'major' issue. Thank you for
your time.

----------------
This post is a suggestion for Microsoft, and Microsoft responds to the
suggestions with the most votes. To vote for this suggestion, click the "I
Agree" button in the message pane. If you do not see the button, follow this
link to open the suggestion in the Microsoft Web-based Newsreader and then
click "I Agree" in the message pane.

Windows Vista Community: Discussion Groups