GoDaddy, the registrar I use, doesn’t have an easy way for customers to submit new IP addresses; the company asks you to make the DNS change on your own host’s DNS machines.
Apparently, my own host does not maintain DNS servers.
Ergo, updates to my blog, on the server with the new IP address, weren’t showing up yet. So I’ve reverted to the old server, and if Blogger would stop choking, the last two messages and a comment would appear, as would an addition to the blogroll, Ken Levine.
On the bright side, I am wrist-deep into correcting.