I have about 20 sql servers (2000 and 2005). I setup an MSX/TSX job in
SQL Agent to Register the Server in Active Directory to make sure that
all future targets are registered, etc..

---Enroll the server in Active Directory
use [master]
go
exec sp_ActiveDirectory_SCP @Action = N'create'
go

However, 90% of my servers are NOT listed when I do:

osql -L

or try to choose any network SQL Server connection in SQL Server
Management Studio.   All servers have TCP/IP and Named Pipes Enabled
and remote connectivity enabled (2005).

What can I do to ensure all of my servers can be seen and availble
from a drop down list of servers?

Thanks

Erik