Go to your profile, on the left hand side of the screen you will see a list of options, click on the "edit signature" tab then fill in the box with the info you want to have on there.
Glad to know I am not the only one who had a time figuring that out. All this computer hocus pokus....drives me nutty! lol....I figured it out and I am sure you can. Good luck and God bless.
