I have Civ IV complete and tried both patches from the website and when clicking 'look for updates' within the game. Either way, I get the patch install wizard. I get all the way to after it asks me if I want to register to Firaxis news letter. After clicking 'install' from this point the wizard just shuts off like I CTRL + ALT + DEL it. No explanation or any error boxes. It just goes off. I check my build for my game and I am still on 3.17. Any suggestions?