I *think* you have to go to the little head looking thing in the top right of the page. It's under community and by the notifications thing. Then there's a spot above your badges to change signature settings. If you're doing it that way, then I have no idea.
Did you get it to work? You go to Account Options at the top right of your screen, then preferences, then once you're on that page there is a left side navigation that lists Signature Settings or something like that....
Re: Problems changing siggy pic?
no help here but I read sippy...instead of siggy. lol