I just had my signature / forum image cleared for being too large (which, annoying, but fine) but I'm trying to re-do it so it's the proper size only it says that my signature is 0 pixels tall (which it obviously isn't, because I do have a signature.)

So now I can't figure out how large to make my image, which is very frustrating.

(also there's no signature in the forum image example post, which makes it even more frustrating)