When you specify the field while editing the value list, there are two additional checkboxes:-
• "Also display values from second field" -- Check this and select the table and field you want to show on the drop-down list
• "Show values only from the second field" -- Check this.
Phil's tutorial on drop-down lists may be of interest to you.
I had the settings set, like you mentioned.
I also changed the component from Drop-down list to a Pop-up menu and now it functions like I wanted.
Also thanx for the tutorial.