This just in from Guru 3D.

Alexey, (Rivatuner programmer) replaced his 9800PRO with a GeForce FX5950 in his primary PC to add some ForceWare 56.xx specific things to upcoming RivaTuner 2.0 RC15. He was rather disappointed when he saw that annoying image sharpening bug is still not fixed in the control panel. Funny as Alexey can get irritated by these things, and he did ...So he decided to fix it himself.