I am unsure but I think steam is trying to download the game instead of installing from my disk. When it valadated it I clicked play, and it took me to the main steam page, and says I am downloading the game.

Is this the case, or is there already an update to the game? It seems insanely long also... been at it for 15 minutes and only at 1%.

Can I override this and install from the disk?

Heck I have even uninstalled, and reinstalled it...

Disconnect from the internet and try again?

It working now? I'm on pretty limited bandwidth at the moment, so having to download it might tilt me towards purchasing for a console.