unix auth with mysql radreply

Hello, I setup a freeradius for chilli-coova. It uses both unix accounting (which main users are there) and mysql at the same time for accounting and logging. Just i have a little problem. If i create a user on mysql and give an attribute in radreply, it works fine. But if i create an entry in radreply (Even tried with radgroupreply and usergroup) with unix/shadow authentication, i cant get the reply message. Just radacct records works fine without a problem. Do i have to enable smthing else on radius.conf or sql.conf to use radreply for unix accounting? And also i wonder is it possible to give a default value for everyuser that authenticated via freeradius? A default group for everybody???