OK I figured it out. Whomever designed the Holiday skin forgot to include the little green dot. Ironic, considering it is somewhat festive in itself. When I went back to the old red skin, the green dot reappeared. They should make me a mod.
Now to another subject. What does it say about Mario that he has his little green dot turned off. He's afraid for people to know when he's online?
looky here, a texan with common sense. pass go and collect your 200, gwart.