When I try to perform folder synch or upload files, I get the following:

A critical error has occurred.
Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation.

I recently upgraded to 3.3.4.  It seems that I can't do anything useful with the file manager until this is resolved.  Any ideas?

Thanks!

Ian

Has this been resolved ?

I'm getting the same error message :-(

Thanks,