Computer help: CNET User Reviews - unable to post comment / update

CNET User Reviews - unable to post comment / update

When I return to my user review of a product, it gives me the option to add an update. After I enter the subject heading and body in the given fields, I am unable to "preview" or "submit". When I hit either of those buttons, the page just redirects to the top of the page, almost as if it was reloading. I've tried this severeal times... Any idea?