How strange - since last weekend my GRAW2 online ranking seems to be stuck at 4, 0%

It won't go up, or down, no matter how many games i win or lose, or how many better players i shoot in the head.

I think its bugged! My housemate whent down from a 5 to a 4 last week yet my score stays the same. Playing on the same Xbox btw.

Any one had that?

Butuz