Sig issues

[KingOfZeal]

I'm having issues trying to update my sig... it keeps saying "BB code is not allowed", even though when I manually bold or do something else, it's all in BB code. I've figured that the problem is coming when I try to make the site in my sig into a link... it's not liking the URL tags for some reason, even when I just type the address and let the system link it.

Is this deliberate or...?