OK heres an update. Didn't have time to go to the lighting wholesale today so I stopped at HD and grabbed a two pack of lamps, stopped at the customer's house, popped them in and they lit right up.
Then I go home and eat dinner, go out to my shop and look at that bad case of lamps. One by one I try them in my shop light fixture, THEY ALL WORK. I swear they would not light in the customers fixtures, even the ones with new ballasts. But her old lamps worked fine in them. I just can't figure it out, they are all the same type of lamps, it just doesn't make sense. This is why I hate fluourescents.
