I have installed Resident Evil 5, it was playing well till two days back. But now it displays an error as Control Scheme Changed to Controller. I have no idea why is this error messaged displayed when I launch the game. This is error is displayed on the movement of mouse when the game starts. The error is displayed in the top-left of my View Sonic monitor. I am using Windows Vista and Intel Core 2 Duo processor. I have installed new I-Ball USB Keyboard and Mouse. Also provide me the system requirements for Resident Evil 5.