Problem using Client Side Callbacks in 2.0

[Guest]

Hi,
I’ve just installed the VS.NET 2005 Beta 2 to try out the new “Client Side
Callbacksâ€. But I keep getting the following error:
“ASP.Test_aspx.FrameworkInitialize(): no suitable method found to overrideâ€

All I’ve done so far is make the test class inherit from
ICallbackEventHandler instead of System.Web.UI.Page and add a
RaiseCallbackEvent function that returns DateTime as a String.

I’ve also tried a few code samples from the web and received the same error.

Any help appreciated,
Brad.