network problems

Hello all.

1. First problem: i recently installed two SMC9462TX gigabit cards in my
server, compiled the nge module in kernel, everything fine so far.
However, even though when booting i get the message "ng1 gigabit link
up" and "ng2 gigabit link up", only ng1 works; ng2 refuses to accept the
ip i give, can't ping it, nothing (btw, the NIC is working, tested it on
another system). What could be the problem? (while i wrote these, after
installing FreeBSD 5.2.1 on another computer that has 3 100 Mbit SMC
cards that were recognized by FreeBSD, only the first, the one that i
configured during the install is working, the other two again won't
accept the ip-s and refuse to work [no error messages]).

2. I recently configured a samba PDC (FreeBSD 5.2). Everything is
working smoothly. Now i have to make another computer, that will hold
all the files the people in the company will work with. [thank goodness
for ACL support in UFS2 :) ]. But, even though i found lots of docs
regarding how to setup samba as a client dominated by a Windows PDC, i
am a bit lost about how should i setup it so that it authenticates
against a samba PDC. Could someone point me in the right direction
please? And i am very courios what should i be carefull of, in terms of
load balancing and stuff, since the file-server will be accessed
simultaneously by 50+ users and they work with really huge files. Any
advice is welcome and appreciated.

Thank you and keep up the good work.

-zoli