[Samba] upgrade of windows AD

[Paras pradhan]

Hi,

My samba server uses Active directory for authentication. After the windows
upgrade to 2008 server, all of my users needs to add domain name in user .
for ex: abc at sambadomina.com instead of abc only.  This is a problem since
some of our macosx users are still not able to login using full username. Is
there any way to out to configure samba so that users can connect using
username only i.e like abc instead of abc at domain. com ?

Thanks
Paras.