[Samba] Win2008 R2 in samba domaain slow login

[Andreas Moroder]

Hello,

we have a samba domain ( no AD ) and a windows 2008R2 server. The 
roaming user profiles of the windows machine are stored on the samba 
PDC. When te user logs in we get the message
'Please wait for the user profile service'
for 30 seconds and more.

Is the reason that samba is PDC and profile server ?
Is there a solution to this problem ?

Bye
Andreas