Edubuntu Install Problems

[Theodore Moore]

I had been using 7.04 on a trial setup.  I have 12 clients and all of
them connected, but the computer was short of real power...so I
purchased a dual AMD-64 computer with 2 Gigs of memory.  This thing is a
screamer!  However, now the clients do not connect.  I thought it was
the Gigabit card so I put a 100 MB card in but no change.  Is there
something squirrely with the AMD 64 version?  Please reply to this
email.  Thanks