WORKAROUND: Image Sharpening won't turn off or stay below 4%. WORKAROUND: Image Sharpening won't turn off or stay below 4%. UPDATES: * Bug exists in (32-bit): 97.46, 100.54, 100.59, 100.64, 101.41_beta * Workaround works for all versions Story: OK, so I installed the latest "official" nVidia Vista drivers for my 7800 GS... ForceWare 100.54's. I then played with some settings, including Image Sharpening. Problem: After I enabled Image Sharpening, I decided I did not like it. So, I moved the slider to 0%, and hit apply. Text still looked sloppy, so I restarted the nVidia Control Panel, and it was set at 4%. I tried clicking the "Restore Defaults" button (oddly located way at the top)... hit apply, and had same problem. No matter what I tried with the nVidia Control Panel, I could not get it reset. Workaround: After some diligent testing with Driver Cleaner Pro v1.5, and some registry sniffing, I have found the registry value that controls this value. To "reset" Image sharpening, here are the steps: Do a registry search for VALUE "Sharpen". Look for values looking like "00000001RMSharpen"... for instance "00010002RMSharpen" Delete every instance you find. Restart. Post your results here. Cause: Once the Image Sharpening value is non-zero, it cannot be reset to zero via the nVidia Control Panel. Details: 00000001RMSharpen [REG_BINARY] At 004%: 01 00 00 00 00 00 00 00 At 052%: 0b 00 00 00 00 00 00 00 At 095%: 14 00 00 00 00 00 00 00 At 100%: 15 00 00 00 00 00 00 00 From the above data, it would appear that the coder wanted 16 differentiable settings for Image Sharpening. BUT, because this is binary, it becomes obvious that the 100% setting is 0x15 (21 in decimal), meaning that they're really getting 22 differentiable settings. This confuses their internal math, and breaks the Control Panel's slider. Good luck. I'm sure this will help someone!