>>A third way I always use is to click on the reference so it is highlighted and then go to the property page. The path is right there in the properties and you can edit that. Then boom the exlamation goes away on the reference.
Thanks for that idea.
I can see the path on the poperties form, but its control is not enabled and I can't edit it.
What I do I need to do to enable that control so I can change the path?