Limitations of Samba-2.2.x as a domain member talking to an AD domain controller

[Richard Sharpe]

Hi,

Can anyone point me at documentation on the limitations of a downlevel 
server being a member server in an AD network? 

The specific case I am thinking of is a Samba-2.2.x-based server.

Regards
-----
Richard Sharpe, rsharpe[at]ns.aus.com, rsharpe[at]samba.org, 
sharpe[at]ethereal.com, http://www.richardsharpe.com