Originally Posted by nosnoop 
K10D Service Menu and AF Adjust!
M.S. Shin has posted this at dpreview:
[Usual word of caution: you can seriously screw up your camera if you fool around with the settings!]
Just terrific. I'm now envisioning thousands of used cameras on the market with screwed up internal program settings because geeks reading about these service menus on the internet messed around with things they are totally unqualified to handle properly. Of course, every one of these self-styled know-it-alls (usually hacks) either thought they could do it better/cheaper than the pros or, like children, simply could not resist playing around with things. As far as I'm concerned, the value of used Pentax cameras just dropped dramatically.
stewart