How to rename a DSFW domain user

When I rename a DSFW domain user in iManager or MMC the user can not login with the new name.

How do I rename a DSFW domain user so that the user can login with the new name?

What attributes need to be updated when renaming a user?

The attributes map to the following fields in MMC

         

Attribute	As show in MMC
userPrincipalName:	=  User Logon name
sAMAccountName:	=  User logon name (pre-windows 2000)
uid:	=  User logon name (pre-windows 2000) at time of creation.  It is not changed with MMC
givenName:	=   Display name
sn:	=   Last name
fullName:	=   Not in MMC
dn:	=   Full name
cn:	=   Full name
name:	=   Full name

                    sAMAccountName is the attribute used to authenticate a user from a XP workstation.
Example: user
userPrincipalName can be used for authentication on XP workstation.
Example: user@domain.com

In MMC change the 'User logon name (pre-windows 2000)' field to change the sAMAccountName.
To change the userPrincipalName in MMC change the 'User logon name' field.
In iManager or Console One go to the other tab and edit the sAMAccountName and userPrincipalName.
The sAMAccountName is restricted to 20 characters (assuming not character is not double-byte character)