The version of IE that I'm testing in is 8.0.6001.18813. Since you can see the same problem on the demo this indicates that it is an issue specific to your browser. Do you have any add-ins installed or toolbars? Do you have a way of testing this in a version of the browser that does not have any of these things installed? This is my best guess rite now based on these results. Please post back with what more you find out, aside from this thread I have not seen this issue before.