I just got a new win 7 emachine and i cant install Rise and Fall civilizations at war. If i try to use the discs i get errors saying that files are missing. I tried installing the discs first and it worked but when i reboot the computer( i have to to play the game) the game gets deleted. I tried changing the compatibility mode to windows xp service pack 3. the game is no longer deleted when i reboot but when i try to play, the runme.cmd file is missing. the installation was very fast and the program is taking up very little space.What can i do?