The look-ups are all working from where I sit now. The original problem was translating www.martonmills.com into an IP address. It's roughly a 3 stage process, and the middle stage was broken somehow: look up the parent domain, get the address of the name servers for the domain, ask those servers for the address we're seeking.

Even though i could not perform the resolution in testing, my system had all of the addresses cached, so I never would have noticed. Somehow I suspect this may have been true for Steve and Barb. Do y'all go to tartan mill sites much?