Thank you. My client has been going bonkers over all the problems associated with the nameserver changes, and the list is long. This is the latest.
The email works. Please don't touch them. We spent 7 days trying to fix those as the domain registrar's automatic system messed them up. They may be strange but email now works. The MX record for the www domain was INSISTED upon (with much argument by me) by the registrar. I thought that might be the issue, but after 7 days of the client panicking without email, since we had email, I thought I'd trust the registrar to know how the system worked. Again, they've led us astray if this is the issue. Thank you!
Hopefully the www issue is the last of the registrar nightmares we'll have to go through. I wish WordPress.com did domain transfers. Life would be so much easier.
And thank you for the admonishment to not duplicate posts. I've written those words myself thousands of times. As one of the founders of the WordPress Support Forums, I figured I was owned one. :D