Mulitple sql groups

Hi all, If I have mulitple sql groups, radgroupreply items that are returned are not restricted to the groups which the radgroupcheck items match. It seems that the first row of the radgroupreply table is returned to the nas (as long as the user is a member of this group however EVEN if the radreplyceck items do not match for this group). I assume that this is not correct? Is there therefore a way to get multiple sql groups to work correctly? Cheers, Stavros EscapeNet