The signature option is disabled for members who have been registered for fewer than 30 days AND have fewer than 30 posts. I am one such member myself... just wait it out. :P
The rule was put in because we were inundated with Spammers who were posting links in their siggies. It used to be 30 days so count your blessings! Time will go fast.
i have difficulty knowing what to put in my signature....
ive just got my august goal at the moment....
i would like a quote, but i know far too many inspirational ones and cant decide which to use!....