Im having the same exact problem just reformatted yesterday.. and it gives this error....
Error: Your browser cookies are not active. This is usually due to:
(a) you have changed your browser cookie settings, in this case reset your browser cookie settings to their default configuration.
(b) you are running firewalls such as ZONE ALARM. In this case, adjust your firewall settings to allow cookies. For Zone Alarm info, refer to this thread: http://forumz.tomshardware.com/community/ZONE-ALARM-PRO-SETTINGS-ACCESS-ftopict14244.html
This IS happening with both IE7 and Maxthon browsers.. Firefox still works but I have FF