removing a field from ldap entry

[Jason Williams <jwilliams@courtesymortgage.com>]

hello everyone...
I have the following entry in my test system:


# blackberry, Users, courtesymortgage, com
dn: uid=blackberry,ou=Users,dc=courtesymortgage,dc=com
cn: blackberry
sn: blackberry
uid: blackberry
uidNumber: 1003
gidNumber: 1000
homeDirectory: /home/blackberry
loginShell: /bin/bash
gecos: System User
description: System User
objectClass: inetOrgPerson
objectClass: posixAccount
objectClass: sambaAccount
pwdLastSet: 0
logonTime: 0
logoffTime: 2147483647
kickoffTime: 2147483647
pwdCanChange: 0
pwdMustChange: 2147483647
displayName: System User
acctFlags: [UX]
rid: 3006
primaryGroupID: 3001

I created this user using the idealx scripts. I made the users primary 
group loanofficers.
I then added this user to a second group, cm. This is evident when I do:

[root@PDC-SRV sbin]# groups blackberry
blackberry : loanofficers cm

Below, are the entries for loanofficers and cm groups.

# loanofficers, Groups, courtesymortgage, com
dn: cn=loanofficers,ou=Groups,dc=courtesymortgage,dc=com
objectClass: posixGroup
cn: loanofficers
gidNumber: 1000

# cm, Groups, courtesymortgage, com
dn: cn=cm,ou=Groups,dc=courtesymortgage,dc=com
objectClass: posixGroup
cn: cm
gidNumber: 1001
memberUid: jwilliams
memberUid: blackberry

My question is this: I want to remove this user from the 'cm' group, but im 
not sure how.
Anyone know of a good way to change this for this user? Im a little unclear 
on exactly how to do it so I thought i'd ask.

Thanks.

Jason