I am using the latest WP install (2.6.3), on an Apache server, PHP 5 with cForms 9.1 and the DeepBlue 1.1 theme.
I have several pages (that show as TABS), and some of these pages have a form in them, and some don't. The only thing I see in Microsoft IE is the Home page, if I click on any of the tabs (where the page has a form), I only get the header (with the body cut off). If the page does not have a form, it displays properly. Here's the error message I get (if I double click the yellow error code icon):
Problems with this Web page might prevent it from being displayed properly or functioning properly. In the future, you can display this message by double-clicking the warning icon displayed in the status bar.
Error: Expected ';'
If I use Firefox, everything works fine.
For cForms, I am using preset forms that I created myself.