[Samba] Printing only as admin?

[Rob Thomas]

I'm having a problem with a Samba PDC box that only lets users who are 
defined by "admin users =" to print to any of the printers.  As an 
interim solution I just threw my @staff group in there, but of course 
this lets everyone access everyone elses files :)

Here is one of my printer configs:  As you can see, I tried to set every 
flag I could think of to let anyone write to this.

[optra]
    comment = Tech Area
    path = /var/spool/lpd/optra
    printer name = optra
    writable = yes
    browseable = yes
    public = yes
    printable = yes
    guest ok = yes
    valid users = @staff
    write list = @staff
    print command = lpr -P %p %s; rm %s

Is there something I'm missing here?  If a user isn't defined as an 
admin, they cannot access this printer.  I've searched extensively, and 
haven't been able to find anything online.

Thanks in advance!

-rob