Eurydice - 12:05 am on Jul 15, 2010 (gmt 0)
It's fixed! Google Adsense called a bit ago; the guy said it was a hairball of a mess.
My accounts go back to 2003; there are Adwords accounts, MCCs, Adsense, etc. They moved things around; I can finally log into my original (and primary) Adsense account again; and I tied the Adsense account to my Google Analytics account.
Many thanks to Google Adsense.