Thanks gp1806 that would be super. I have looked at this manual I downloaded from the link Jeff supplied but it talks about unsoldering things, and I'm sure that's not what I need to do here.
Wombat, I've had the Eneloops for less than a year. I have a set of Energizer rechargeables I use in a pinch; guess I could charge them up and try those just to be sure it's not the Eneloops.
ducdao, I understand you have a problem with your K100d but wouldn't it be better if you started your own thread? Answers to both our questions might be confusing with two different problems.
---------- Post added 02-14-11 at 12:02 AM ----------
Wombat, I tried what you suggested also. Playing with the wheel, wouldn't you know it, it was fine. Changed f stops just like it was supposed to do.