I have a Dell Latitude D505 running a fresh copy of XP SP2. I am trying to
create an ODBC System DSN to our SQL 2k server. The SQL Server has about 6
instances installed on it. When I pull down the drop down box to select a
server, only the server name exists, but none of the instances. This is
working on 180 desktops configured off the same image of XP.

Basically, I am seeing:

<Server Name> instead of <Server Name>\<Instance>
<Server Name>\<Instance 2>

Just so you know, I have already updated the MDAC version, so that cannot
be the issue.

This is all set now. My issue was the wireless network being enabled. As
soon as I disabled it, it worked fine.