Thank you for the link. The RadRotator
control is indeed rendered on the page and it should work, but I check the page by using the W3C Validator
and it reports several problems in the rendered code. This may be a reason for the behavior that you experience.
In this case we need to examine your setup and we need a runnable project, that reproduce that behavior. You can send it to us by opening a new support ticket, where you will be able attach files.
the Telerik team