Login to wap.geocaching.com does not work with Nokia 7250i - gives error message "Response unknown". Resubmitting the login once gives the same again, second time gives the above mentioned
"Server Error in /
System.Exception
The page requires session state that is no longer available. Either the session has expired, the client did not send a valid session cookie, or the session state history is too small. Try increasing the history size or session expiry limit. Method:OnViewStateExpire"
However, when I went back after the first "Response unknown" and reloaded the first page, it suddenly told me I was logged in..
Logout works as it should.