Yes, I deactivated all the plugins and cleared all cookies and temporary internet files. I’m using IE9 and I also tried it in firefox, same problem.
I also tried twenty-twelve. Same problem.
I also just realized that on the widget page, I am not able to drag and drop the widgets, and on the menu page (to create a custom menu) I am not able to drag and drop the menu items to move them around.
So, no toggling, no drag and drop feature and on the Theme Options page, a blank white cener screen.
I’ll mention again that when I did a separate wordpress install on a test site (same web hosting account) there was no problem.