Dead Space 2 "Your graphic card does not meet minimum requirements"

@MrFeiLong 

Yes, I have actually. Your 5870 GPU is fine for this game.

Having said that, there may be an issue with your Operating System. Can I ask that you goto the following link:

http://www.microsoft.com/genuine/validate

Then click on the Validate link at the top. Make sure that you visit the site while in Internet Explorer, otherwise it will ask you do download a small program onto your computer in order to validate.

Ok but I will able to do that in two days because I have no laptop with me at the moment. When I'll do that I'll post a results.

Honestly I doubt that it could be validate problem becaue I have original Windows 7 Home Premium x64 and I'm sure it's already validated. But I'll do that once again.

@EA_Barry:

Finally at home. I did exactly what You asked me for but with no result. Once again I "activated" my Windows OS, this time via IE. Additionally I reinstalled game but got the same error: "You graphic card.....".

Please tell me how OS activating could help with that? Did You have some similar situations where this was helpful?

Still no answer?