[Samba] Problem in fetching usernames of a group

[Chin Teongli]

Hello,
I have configured a Samba PDC on FC3... The Samba version is 3.0.10
The group members are fetched with the following commnd
#> net rpc MEMBERS 'groupname' -U administrator%secret...
When I have a user called 'aaa' and a group called 'aaa' and user 'aaa' 
belongs to group 'aaa', then fetching of users through the above command 
returns 1 which means ther is an error. There is no such error displayed 
however.

only when the username and groupname are same I have this problem.. 
any suggestions would help

regards
Chin Teongli