Most of these new problems that came about after the update have something to do with drivers.
Update the drivers for his graphics card (if he doesn't know what it is go to Start > Run. Type 'dxdiag' into the box thing and hit ok. A window will pop up, click on the Display tab. That'll show some stuff about his current card. Google the model with 'drivers' thrown in and download whatever's relevant) and
DirectX.
If that fails... try updating motherboard drivers and sound card drivers as a last attempt.
If that fails, try reinstalling the game.
