Make sure your minecraft.net username is on the correct casing. I will make a fix for this so if your mc username is incorrect, no avatar will be shown. Remember this is minecraft.net not minecraftforum.net username.
Oh i see u fixed it. Well there u go :biggrin.gif:
Everyone, I will be releasing a No-Avatar version soon! or maybe steve if it doesnt find your avatar. Also will release an API for communities. So you can have your own background image. I dont know why your signatures arnt working since it grabs it straight from minecraft's amazon cloud.