Hi,
I have just done a fresh install via webmatrix 3 of latest dnn, however when I try to create a social group I get the following error:

The request filtering module is configured to deny a request where the query string is too long

and therefore no group is created.
I thought it might be something to do with my PC settings as this install was local so I uploaded to my website (windows azure) but the same thing happened there.

Any hints on what I should be looking for ?
Thanks for your help.