sorry, I've been away. I'm also sorry for my earlier replies as I was misunderstanding your problem. I followed the path you left me and I'm not seeing "portrait". I'm now guessing you want to add an avitar for your signatures am I right? I'll find
Portrait has sub-categories that you would have to choose from. Why don't you give me the steps you're trying and let me see if there's a bug in the system. Sorry for the trouble.
Hi hazel... jpg is what I always upload, then be sure to check the box that says "Check here if artwork preview is the same as the artwork file?" That should do it.