I think Firefox 3 replaces all the ??????'s I used to get with Azn characters with blocks with the four-digit hex code of the unicode character represented or something.
To me the OP looks like (blown up below)
Code:
┌──┐ ┌──┐ ┌──┐ ┌──┐
│64│ │4E│ │59│ │72│
│CD│ │D6│ │27│ │37│
└──┘ └──┘ └──┘ └──┘ etc