I am having a problem while installing Witcher on my PC which is running with the Windows 7. While installing the game the message pop up i.e. incompatible driver. Anyways i have installed the game into the PC of mine but when i am trying to launch the game at that time i am getting message again that ask for the Administrator rights. I have already logged in as the Administrator. If any one can then please let me know. Thanks in advance.