Old Received Message stuck inside all New Messages??

My dad's e-mail is acting rather strange. Whenever he composes a new e-mail, there is always another e-mail stuck inside this new e-mail. So for instance, he received an e-mail from let's say Homer J, and now for whatever reason, whenever he tries to send a new e-mail, the message he received from Homer J is always attached to the top part of this new e-mail message. It's always the same e-mail that gets attached (the Homer J e-mail).

Any thoughts?

 

Well I just got some more detail from him. The message that is stuck inside the other emails is one that he had sent out at an earlier time. He might have also said that it only attaches when he forwards an e-mail? (could be wrong though). He mentioned something about how he was looking around and found something about that e-mail relating to a draft? I don't know outlook very well so I hope those hints help.

I might as well just uninstall and reinstall it :-\. Hopefully that would fix it.