Doesn't help. It tells you to use the AF switch and turn it to auto. It's now at auto. I also changed it back to 'prohibited' for aperture ring and it also does not work.
You have gone through the manual? If it is due to some setting that you have made but have since forgotten, how about resetting everything back to factory default?
I'm a tad confused by what you meant when you say it tells you to use the AF switch and turn it to auto. That only changes the selection of the focus point, not whether the K5 focuses (or not). You mentioned earlier that you selected M. Is this M on the Mode dial or the MF on the side of the camera?
There's also a setting in the camera that deactivates half-presses for focusing by the shutter and only activates focusing by pressing on the AF button. Maybe that's selected?
For the PP side of things....I'm lazy and went from have a RAW workflow to not bothering and just shooting in JPEG. I do have tweaks using the Vibrant profile with +2 Sharpness, +2 Contrast and +1 Saturation. WB I set according to the situation but that's about it. Why not try shooting in JPEG first before messing with RAW since it seems you are fussing over the PP instead of enjoying the K5?