Sorry for the delay in getting back to you.
Those weren't the only dialogs that had the problem. We also had a similar problem with the image editor but ended up disabling that button because it didn't fit the needs of our website.
I tried using firefox and the table buttons don't work in the version I have (2.0.0.4). No error message, no pop-up, nothing.
We have a fully custom policy file for our web application to ensure control over the assemblies that are being used within. We are building a platform for other developers to work off of as well, so we need to be sure that we have the most control over Code Access Security.
Do you have any other ideas that I can try?
P.S. I tried using the table tags in the control for this forum (obviously cuteeditor) and I don't have any trouble in firefox. Is there a config file or CSS class that I am missing?