Where is my signaure

Where is my signature function?
No more ?
Any body knows? Don’t tell me how to setup, I know on the " my sitepoint ", left column. But the “edit signature” button disappear. Why?

Exactly. Under “Settings & Options”.
Here is the link: http://www.sitepoint.com/forums/profile.php?do=editsignature

Thank you very much, the signature function is come back again.