There's nothing wrong with his account or IP. I PMed the user to get more info on the problem he's facing. In the meantime, it's being moved to the correct section.
If he is talking about when you open dueling book and the site is just black with 2 ads (1 at top, 1 on side), i had that a couple of times. Usually happens after when the site crashes & u try to reopen dueling book. It returns to normal when you open dueling book up to an hour later.