zero hour

C&C generals and C&C zero hour not work on my PC widnows 7 32bit i5 750 2.67GHZ HD 5870 1GB 4GB ram ... I press the game icon and shows me the logo of the game disappears and then nothing happens. HELP!

I have installed RC1 on a computer and now a bunch of games won't install. Is the compatability problem going to be resolved when Vista go final, or will I be better off running XP? The main game I want to install right now is Command and Conquer Generals, and the Zero Hour expansion...