I ve experienced this error and after couple of hours later I have realized that the error occurs only on Internet Explorer 10 !!
In order to quck fix it, you may activate the compatible view and you ll see the problem is resolved.
If you like to investigate the problem,
Just enable debugger for exporer and you ll see that you get an Javascript error on postcallback.
Error is __dopostback is undefined
In order to fix it you need to update your browser definiton files of your .Net framework
Here is the link: Just download proper fix
http://search.microsoft.com/en-us/supportresults.aspx?form=mssupport&q=browser%20definition%20files
That's all
In order to quck fix it, you may activate the compatible view and you ll see the problem is resolved.
If you like to investigate the problem,
Just enable debugger for exporer and you ll see that you get an Javascript error on postcallback.
Error is __dopostback is undefined
In order to fix it you need to update your browser definiton files of your .Net framework
Here is the link: Just download proper fix
http://search.microsoft.com/en-us/supportresults.aspx?form=mssupport&q=browser%20definition%20files
That's all