Based on what you are saying here, it sounds like your mail program is not handling attachments properly. When your receive an e-mail with an attachment, such as a picture or a Word document, your mail program has to treat it a little differently than other messages. If it doesn't do this correctly, the attachment will often appear a gibberish at the bottom of your message. This would also explain why it only happens on some of the messages and not all of them.
I notice that you are using an AOL e-mail address. AOL uses a proprietary mail
program which I don't have much experience with so I can't tell you what the best way is to fix this. You may want to get in touch with the AOL technical support and I'm sure they can tell you how to fix this.
I hope this answers your question.
