Extremely long URLs -- don't know if this is a bug with the extension or gravatar itself:'
h ttp://www.gravatar.com/avatar/xxxxxxxxxxxxxxxx.jpg?r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60&r=g&s=60
I was able to fix this by changing the line:
$output[$cur_user['id']] = 'http://www.gravatar.com/avatar/'.md5(strtolower($cur_user['email'])).'.jpg?'.implode("&", $get_vars);
}
to:
$output[$cur_user['id']] = 'http://www.gravatar.com/avatar/'.md5(strtolower($cur_user['email'])).'.jpg?'.implode("&", $get_vars);
unset($get_vars);
}