A Problem

I’ve change my signature. Why doesn’t it appear in my new posts?

Check the “show signature” box before hitting “submit”.

Well, you have to activate the check box that says “show signature” (below the reply box) for your signature line to show on any given post. Once you change your signature, any post you have ever made with signature activated will display your new signature (which makes for funny results when reading in an old thread where somebody comments on the irony of a .sig line that is not still there).