Hi there, I've just been given some code to insert into my dotnetnuke page and am getting a few problems I wondered if someone could help me with? (see Code attached)The code is a form to enable a user to login to a learning environment.Firstly I tried the code on a DDN3 ASPNET 1 website and it breaks the skin in IE7 as it has lots of blank space to the right of the login boxes but seems to work fine in Firefox?Secondly I tried the code on a DDN4 ASPNET 2 website and get the following critical error when trying to login or logout of my website?Can someone point me in the right direction please? many thanks...
A critical error has occurred
Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.