Permission issue

I have a Windows xp with all the latest patches that will not let me access the SQL with any other than the domain admin user id. I have Access 2000 installed and can only see the database if I am logged on as the Domain Admin. I can go to another pc and log on as a plian domain user and make the database connection through Access. Both PC’s are in the same domain and IP segment Its like the permission on this machine are not reacting correctly.
Would love any help. Don’t want to have to reinstall the machine.
Thanks