I have a client using Outlook 2007 on 5 different computers. Whats happening is that people they randomly email but when the recipient replies, the logo is randmonly replaced with the text <image001.gif>. Its random, because I emailed myself from their outlook, and I got the email perfectly. I cannot pin it to one recipient or another. Its random.
Here is what it looks when its emailed.
I used the regular signature editor