here version 3.5 in multisites mode.
The plugins also installed are WPML and s2member.
I've created a new role called 'Guests' as a clone of the default 'Subscribers'.
When I changa the default Role for New User to 'Guests' an error message is shown:
"Error! Error encountered during default role change operation"
and of course new users are assigned to the role "Subcribers", not to "Guests".
Is there any solutions without removing WPML and/or s2member, which are a must?