I keep getting this error which gets emailed to me from the Application_Error event:
System.Web.HttpException (0x80004005): The state information is invalid for this page and might be corrupted. ---> System.Web.UI.ViewStateException:
Invalid viewstate. Client IP: 22.214.171.124 Port: 47545
Any idea what might be causing this? I can't see any problem in the code on the page that's causing it, and it only happens now and then.