I am currently evaluating Rational Functional Tester to determine if it will be sufficient for doing some automated testing on a web application. The app was built with VB.net. When I attempt to select items from the menu while recording, I receive the message 'WrappedException[System.InvalidCastException] - Specified cast is not valid.'. Our menus use the built-in .net menus but use the Microsoft css adapter to render the menu in divs rather than tables.

Can anyone offer any guidance as to how I can write/record tests to get around this error?