Can't figure out how to edit a Draft e-mail message--simple, right? Wrong.

Question

OK, sorry if this is too basic and belongs in the Getting Started folder, but I couldn't find the problem here or in that location.
I thought I could figure out how to edit a message in the Drafts folder. I tried; it didn't work. I looked online, found a tutorial, which showed that I was indeed trying to do the right thing the right way. So why doesn't it work????
Here's what happens.
I start an e-mail message, click Cancel, then save as a Draft. That works fine. But then...
From the Home screen, I tap Mail.
On the Mailboxes screen, I tap Drafts (there's a number on the right -- 2 -- which disagrees with the number of messages actually seen -- 1 -- at the next step; I don't know if that's an important detail or not).
I see the draft message I want to edit. I tap it.
I tap Edit. According to the tutorial, the message is supposed to open up for me to edit further. But it doesn't. Instead...
The two lines representing the message (Recipient and first few words) move a bit to the right, and the Edit button changes to Cancel.
A dull red Delete button and a blue-gray Move button show up at the bottom. But the first line of the draft message, which has (accurately) shown up under the boldface "(No Recipient)" line, stays where it is -- showing as part of an entry in the list but not as something I can edit. I don't see the complete message, and I can't edit anything, even though I think I have just entered an Edit mode.
I click those two lines, and a red checkmark appears on the left, and the dull buttons at the bottom become brighter red and brighter blue-gray.
Tapping, double-tapping, tap-and-holding... all just toggle that checkmark on and off.
THIS MUST BE REALLY SIMPLE... HOW DO I EDIT THE TEXT OF THE DRAFT MESSAGE????

Answer 1

Zero replies??? Wow, I guess this is a really uncommon problem.
Well, the Genius Bar fixed the problem. They confirmed that it WAS real, and they couldn't figure out how it had gotten that way. There must have been some internal list in an inconsistent state... or something.
The fix was to deactivate my MobileMe account on my iPhone -- just wipe it out. Then they re-activated it. Everything re-synched and the problem was gone.