I'd be interested to know if anyone has any advice on getting warranty work done on a Martin. I bought a 1969 D-21 new and was assured that it had a lifetime warranty from Martin, that my ownership of the guitar would be registered with Martin, just bring it to any authorized Martin repair shop, etc. So 30 years later I discover that my warranty is good only if I have the original sales receipt, so the $750 in repairs that it needs (neck reset etc.) has to come out of my pocket. Hell, I was 23 at the time, I've moved 17 times since then, of course I don't have the receipt. The guitar was never registered to anyone (you can find this out by calling Martin) which means either the dealer or Martin screwed up. The peculiar thing is that the folks at Martin tell me that a letter from the firm welcoming me as a new Martin owner (they did this in the early 70s) would be sufficient to establish ownership. This means that Martin is admitting that there are folks that Martin knew had just bought a new Martin, because they sent them a letter, but their guitar did not get registered to them. This conveniently saves them a lot of money now. And apparently Martin is no longer accepting notarized affidavits or the like either. Fact is, I don't have $750 to spend on my guitar. Makes me want to cry.