[Samba] Problem with Winbindd not showing all Groups

[Plant Thomas]

Hi,

I've downloaded and  installed the samba 3.0.2 binary packages for Debian
3.0.

The problem is, that if I do 'wbinfo -g' I only see a small number of
groups,
about 10, where there should be almost 30 groups.
The 'wbinfo -u' works fine, I see all my users.
Could it be that there is a problem with german 'Umlauts (äöü)'? I have some
groups
with these characters in it, but not all missing have them in it.

Thanks for every suggestion,
Thomas