So I recently bought GTA IV (This will make sense soon) but for some reason it wont load when I select play nothing happens, ok. I saw this game on youtube and figured I should try this! I see there was a demo so I download it and select play, nothing happens, it says im in the game but im still on my desktop. I went changed it to windows 7 compadibility (I use windows 8) but that wont work. I checked my task manager after I selected play and in background processes it says Atomzombiesamsher(32 bit). Im not sure why these games are not working all of a sudden, help please!