Make sure that those XP Pro computers are configured correctly for dns as that is
usually the problem. Domain computers must point only to domain controllers running
AD dns for the domain as their preferred dns server in tcp/ip properties as shown via
Ipconfig /all and be able to access them. Pinging the domain controller by fully
qualified domain and using nslookup are ways to check connectivity to a domain
controller. Nslookup may show an error if you do not have reverse lookup zone
configured for the domain but it still can do lookups if dns is configured correctly.
Never list an ISP dns server in the list of preferred dns servers of any domain
computer. You should also be able to see and access the sysvol shares of domain
controllers in My Network Places. --- Steve
http://support.microsoft.com/default.aspx?scid=kb;en-us;200525
http://support.microsoft.com/default.aspx?scid=kb;en-us;816587
Nslookup is a command-line tool that displays information you can use to diagnose
Domain Name System (DNS) infrastructure.
To use Nslookup to verify the SRV records, follow these steps:
1.. On your DNS, click Start, and then click Run.
2.. In the Open box, type cmd.
3.. Type nslookup, and then press ENTER.
4.. Type set type=all, and then press ENTER.
5.. Type _ldap._tcp.dc._msdcs.Domain_Name, where Domain_Name is the name of your
domain, and then press ENT
