No Post Excerpts/Custom Fields/Help/QuickPress

Hello,

I have been using a Semiologic theme at http://internettvdotcom.com for the past few months without experiencing any problems, and I use Mozilla Firefox (4.0) regularly. After the 3.1 upgrade, my post excerpts or custom fields and help links aren’t showing anymore. I can’t create/edit any posts. Prior to the upgrade, QuickPress wasn’t working and still continues to show the following, “This widget requires JavaScript.”

In addition, when I visit my site at InternetTvDotCom some of my widgets aren’t visible such as Twitter and Sharebar widgets, and my rotating tag cloud widget isn’t rotating anymore when using my Mozilla browser.

Now when I use my IE and Safari browsers everything works fine and appears normal.

I’ve disabled, refreshed and updated all plugins, including changed themes using WP default theme, cleaned my computer (ran security software, cleared recent history, cache, etc.). I also uploaded WP 3.1 manually, followed other posts, articles, and instruction to remedy the problem but nothing seems to work.

I’m wondering if this could be a javascript issue. Javascript is checked enabled in my Mozilla browser. I’m waiting for a reply from a post I left in the Mozilla support forum, explaining this problem and a browser crashing/freezing problem that has been on-going.

I have many other WordPress blogs that use different themes and none of them are experiencing any problems in Mozilla.

Any ideas or solution will be greatly appreciated…

Thanks!