Hey, I just installed Winblows 7 which I downloaded officially from Microsoft.com and so I got it working BUT when I install Steam (Steampowered.com) and I download a game such as Garry's Mod its says Preparing to load "[insert game name here]" and then it does its little loading cursor and then its doesn't do anything it just stops and the launching window closes and it won't start. Any ideas? is it Winblows 7? Something went wrong? Thanks.