in your first post you mentioned "long log in times" this is a DNS issue.
Especially if it is happening to all clients.
You can peruse the "old NT server" issue if you want, but save yourself some
time and check the DNS set up.
Don't assume they did it right.
How are your clients getting their DNS settings? Did they set up DHCP to
give out this info? If so is DHCP giving out the correct info?
Check to make sure your DNS server set up for the AD domain points to itself
for DNS (in the properties of TCP/IP) this will allow it to register the SRV
records your clients are looking for when they log on. If they can't find
them, it takes a long time to log on (sound familiar?)
How to verify that SRV DNS records have been created for a domain controller
Make sure your AD client point to the same DNS server set up for the AD
For internet access your AD DNS server should be set up to forward requests
(or use root hints) and list your ISP's DNS server as the forwarder.
This is the only place your ISP's DNS servers should be listed.
DDS W 2k MVP MCSE