Rivatuner ver 2.24 I want to turn the 40% down a bit in "low-level fan control" but this field is locked. I then try to unlock it in "power user" under Riva Tuner/fan/autofanspeedcontrol, but the field is still locked! After restarting Riva Tuner the tick beside autofanspeedcontrol is gone again, so that might be the problem? How do I turn this 40% down to 35% in min. fan on my GTX260?