Bought this at the weekend and I've noticed some strange goings on... 1. Even though I have played a few single player games, I haven't registered a score on the online leaderboard. 2. I've seen about 4 trophy notifications, but when I look on the XMB it only shows two. 3. I should have unlocked quite a few more trophies.
Is your console still signed in to the PSN when your playing the game? that might be causing problems sometimes mine kicks me off for some unknown reason