Thanks guys. I got so busy with work today I forgot to come in and mention that it worked fine this morning. Wonder if it may be a contact issue...I'll take a voltmeter and start probing when I have time. Luckily we don't have another cold snap coming to south Texas for a week or so, so I've got some time to learn how to use the meter and correctly interpret the results. My XK has had electrical bugs from the day I got it.