2 NT 4.0 / Samba 2.2.0-15 questions

[James Puckett]

All, 

I am using NT 4 SP 6 and Samba 2.2.0-15 on Linux, and am having two problems. 
The samba server is a domain controller and print server for the NT machines, 
which I am attempting to convert to use roaming profiles via the samba PDC. 

Problem one: When using my Samba domain account on the machines, programs 
running in Windows constantly generate memory access violation errors and 
crash, starting Dr. Watson and often causing problems with the machines in 
general. 

Problem two: I am able to set up my printer on the Samba machine and have the 
NT machines print to it as the local admin account, but when I log in with my 
domain account the printer settings have been lost, and I can not set up the 
printer because I do not have local access to install drivers. Other users 
however, are able to install the driver. What I want to do is have one 
network printer set up on the NT machines that is the same for all users. 

My smb.conf follows below, private information has been replaced with XXX. 
Thanks!

-james 

# Samba config file created using SWAT
# from 0.0.0.0 (0.0.0.0)
# Date: 2001/10/10 11:16:37

# Global parameters
[global]
        workgroup = XXX
        netbios name = XXX
        encrypt passwords = Yes
        smb passwd file = /etc/samba/smbpasswd
        passwd program = /usr/bin/passwd %u
        username map = /etc/username.mapping
        password level = 8
        username level = 8
        unix password sync = Yes
        socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192
        domain admin users = XXX
        logon script = %U.bat
        logon path = \\XXX\profile\%U
        logon home = \\XXX\%U
        domain logons = Yes
        os level = 34
        preferred master = True
        domain master = True
        invalid users = root bin daemon adm lp sync shutdown halt mail news 
uucp operator
        admin users = XXX

[cgsmb]
        comment = XXX
        path = /home/XXX
        valid users = @XXX
        create mask = 0660
        directory mask = 0770

[homes]
        read only = No
        browseable = No

[netlogon]
        comment = The domain logon service
        path = /home/netlogon
        browseable = No
 
[profile]
        comment = User profiles
        path = /home/profile
        read only = No
        create mask = 0600
        directory mask = 0700
        browseable = No
 
[lp]
        path = /tmp
        guest account = ftp
        guest ok = Yes
        printable = Yes
        print command = /usr/bin/lpr -r %s
        printer name = lp
        printer driver = HP Deskjet 850C
        valid users = *