@Richard.Hein:

Hotmail and MSDN forums are ok. I have your problem for years on Channel 9. It constantly wants me to register using another account and I can never get out of the registration page. In the end, I was forced to register and use that extra account whenever my account get stuck. But, Hotmail and MSDN forums are always fine.

BTW, to people who doesn't know. Clear cookies does not resolve the issue.