CoD won't fully start up

[Lhowon]

Hi,

I have the game on steam but unfortunately I can't get it to load properly. Having looked at the FAQ I thought my graphics driver was the culprit, but I've updated them to the appropriate version and no luck.

The game loads to what you see in the attached picture and no further. It doesn't show any splash screens or the like, it goes straight from a balck screen (with the crosshairs image) to that. I can move the cursor around, bring the boxes up with alt+click (and close them) but can't make anything else happen.

PC specs:
Core2Duo E8400 3.00GHz
4GB RAM
NVIDIA GTX 285 (Driver: 270.51)
Vista 64bit

I've tried restarting multiple times, verifying the game's cache, running as administrator. Would appreciate any help, thanks

EDIT: Oh and one other thing, Steam said I'd need to enter the CD key it gave me, but I was given no option (perhaps because it isn't starting up properly). It did say the "Activated!" thing though.