VS 2003 .NET
OS XP pro, sp2

I've installed Sql Server 2005 Express on this computer and tryed to connect
to Sql Server 2005 Express from the IDE of VS 2003 but in the Data Link
Properties window I get this error message:
"[DBNETLIB][ConnectionOpen(Connect()).]SQL Server does not exist or access
is denied"
I get the message when trying to open the combobox where I can select a
database on my server (my computer, localhost)

What am I doing wrong here?

I created a simple database in Sql Server 2005 Express, this is all I've
done to the database:
create database test; I know a database contains much more than this but I
hoped I anyway should be able to get it listed in VS .2003 Data Link
Property window.....

Jeff