I'm not sure if anyone has had any problems with the prodigy unit but I thought I'd post this anyway. The problem appears to be rampant with the powerstroke equipped fords but my '03 2500 had some issues as well. It would periodically flash o. g. when no trailer was attached and would frequently flash n. c. with the trailer attached. Tekonsha sent me a sample unit as they've been trying vigorously to get the problem fixed. I had a chance to test it out today and I have no problems with the new unit. Tekonsha said the updated units should be shipping soon.