asp.NET HELLPPPPPPP please

[doddsy105]

Hi im having trouble getting my register on my website working for my dissertation and says something about the machine key. please can anybody help.
http://i.imgur.com/1rop3.jpg

thankyou

 

[doddsy105]

First lesson of bug hunting: google the error message.

http://blog.techdreams.org/2008/04/you-must-specify-non-autogenerated.html

doesnt work