Category view is stripping javascript/css from posts

Hi. I am using WordPress 2.5 and have the EXTJS WordPress theme http://extjswordpress.net/ .

For some reason my formatting, javascript and CSS are being stripped from posts when viewing the post by clicking on a Category link.

Here is the scenario:

I have the syntaxhiligher plugin installed for code markup. If I use it on a post, and then view my blog’s main page where the post shows up at the top, then all the formatting such as my P and BR tags, along with the CSS and Javascript required to display the code markup WORKS.

If I click on one of hte categories in my sidebar to view a list of posts IN that category, then the CSS and javascript that display the codemarkup in my post is stripped as well as all the P and BR tags thus shrinking my post into 1 tiny little paragraph.

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To even simplify this and remove the syntaxhighlighter from the equation.. the same things happens with it is deactivated. When viewing via categories on the front page all P/BR are stripped. is there a way to stop this from happening?