I have a four month old Gateway laptop with i3-370M processor, 4GB RAM and ATI Mobility Radeon HD5650 graphics card 1 GB, running on Windows 7 64-bit. Lately I've been trying to install some pc games on it. I got Starcraft 2, Age of Empires 3, GTA 4, and Star Wars: Empire at War all installed already. I've been having problems with some of my other XP games (Dawn of War: Dark Crusade, Star Wars: Empire at War Expansion, and DOOM 3). The problem is that even though the launcher comes up, after I click install, nothing happens. Any suggestions?