when in low-level tweaking mode i set the full cycle percentage to anything betwen 20(min) and 80, it changes it to something between 80-100 :/ specs that might matter: riva tuner version - 2.11 driver - forceware 178.24 card - 7900gs so 3 questions: 1 why? 2 how do i make it work? 3 whats the difference between driver-level and low-level fan control? thanks alot in advance