Also, the extra screen will probably be rendered by software (DirectX limitation) so this may be causing your high CPU usage and lockups. Is the machine a pretty old one? Post some specifications and people may be able to give advice...
Also, the extra screen will probably be rendered by software (DirectX limitation) so this may be causing your high CPU usage and lockups. Is the machine a pretty old one? Post some specifications and people may be able to give advice...