I moved your post to General and out of Off Topic.
Unfortunately, there have been a few reports of this happening with the AU setting. I've only had it happen rarely, but there have been some people reporting that it happens on every reboot. I suggest contacting support on this issue -
How to reach support (FAQ) - http://forums.microsoft.com/WindowsOneCare/ShowPost.aspx?PostID=2421771&SiteID=2
For the forums issue, this is an annoying forum software issue that can be resolved by logging out of the forum, deleting all cookies and temporary Internet files and then logging back into the forums.
-steve