Launch problem

[Korpisolttu]

I just downloaded AS from steam. Everything goes well first, but after 1C company's ad, game freezes and there's only black screen. If I press ctrl + alt + del, I'll see only flash of task manager (where I can see mow:AS as not responding) and it goes directly back behind black screen.
So only way to get out of that situation is to close computer by pressing its power button.

I have windows xp and my computer should pass system requirements.
I've played ordinary MoW without any problems.