...getting it? Getting the following email:

From: Yahoo! Mail
Sent: Tuesday, July 22, 2008 10:10:43 PM
Subject: Yahoo! Mail could not load this message

Yahoo! Mail could not load this message. This can occur when the message is moved or deleted using another email client. In most cases, logging in again will fix the problem. If this error persists, please contact us.

If I delete it, it comes back. After a while it won't delete or even moye into trash. What is it and how can I get rid of it? Thanks