[support] Access denied to Multiforms for all users

[Francesco Baldini]

Hi,
I installed Multiforms module <http://drupal.org/project/multiforms> and
everything works within Admin user, I gave other users (authenticated as
well as anonymous) permission to access it but I get a "You are not
authorized to access this page" message.

I tried to give them access to "access multiform administration" (just to
try) but anything change..

I deleted cache_* content too but no way..

any idea about where's the problem? :/