[Samba] samba 3.08 winbind question

[sharif islam]

Noticed this in /var/log/samba while I was applying 'getent
groups|grep groupname '
[2004/11/09 10:29:04, 1] nsswitch/winbindd_ads.c:enum_dom_groups(282)
  No rid for Performance Monitor Users !?
[2004/11/09 10:29:04, 1] nsswitch/winbindd_ads.c:enum_dom_groups(282)
  No rid for Terminal Server License Servers !?
[2004/11/09 10:29:04, 1] nsswitch/winbindd_ads.c:enum_dom_groups(282)
  No rid for Pre-Windows 2000 Compatible Access !?
[2004/11/09 10:29:04, 1] nsswitch/winbindd_ads.c:enum_dom_groups(282)
  No rid for Performance Log Users !?
[2004/11/09 10:29:04, 1] nsswitch/winbindd_ads.c:enum_dom_groups(282)
  No rid for Windows Authorization Access Group !?

Alsom from the changelog 

"All usernames returned by winbindd are now converted to lower
case for better consistency. This means any winbind installation
relying on the winbind username will need to rename existing
directories and/or files based on the username (%u and %U) to lower
case (e.g. mv $name `echo $name | tr '[A-Z]' '[a-z]'`). This may
include mail spool files, home directories, valid user lines in
smb.conf, etc...."

I am not sure if I understand this correctly. All my group names are
showing in their usual case.