OK, first things are that I am using .NET 4.0 with Telerik Rad Controls version Ajax Q2 2010 Net 4 and the .NET 4 version of the AJAX Control Toolkit.
The website I am working on uses the Telerik Rad Controls quite extensivley but I really wanted to use the Accordion control from the ajax control toolkit as I believe this is better than the alternative from the Telerik product range. After messing about trying to get the two to work together I finally achieved this and functionally we are working OK. However.......... I get the following error when trying to validate the page for valid XHTML
ID "ctl08" already defined
</div><div id="ctl08" style="display:block;">
An "id" is a unique identifier. Each time this attribute is used in a document
it must have a different value. If you are using this attribute as a hook for
style sheets it may be
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