Yahoo Mail Draft folder unread count not correct

My Yahoo "Drafts" folder on my iPhone 3GS is always showing an unread count that is incorrect. All of my drafts are read; in fact, sometimes the Unread number is higher than the number of drafts in the folder.

I wonder if this has anything to do with it: when I go to "Advanced" in my Yahoo account on the phone, the folder to choose to hold my drafts on the server is called "Draft" but it is actually called "Drafts" in my Yahoo account.

This mail account is set up as an IMAP account; I believe I created it using the phone's Yahoo selection. It's been working fine for 2.5 years, on my original iPhone and now on my 3GS. This unread count problem is new over the past few days, I'm pretty sure before the upgrade to 3.1.

I have tried some of the advice out there: creating a new email on my phone, saving it to Drafts and then sending it. But nothing seems to work.

Anyone have any advice? THANKS!

Also, the "Load New Messages" does not work, but that's being discussed in another thread here...

http://discussions.apple.com/message.jspa?messageID=10199276