I upgraded to 3.0 and at first my site was fine. After that I couldn't log in my dashboard so I had wordpress send me a new one. When I log in my dashboard was stuck and I can't edit my post,comments,categories,. I can't access my plugins and half of my dashboard is missing. So I contacted my host and had them downgrade me back to 2.9.2 but now I still have the same problems I had with WP 3.0. My other sites that have worpress 2.9.2 and have not ever been upgraded to 3.0 are FINE! What do I do?...PLEASE HELP ME!!!!!!