The autofocus mode switch that "Seeing Well" mentioned is a very good suggestion. I haven't used my K20D for several months and I've forgotten pretty much everything so I'm starting over again.
I suggest you read the manual. Yup, it's a monster manual but it's also a monster camera capable of taking amazing photos.
Looks like we'll be muddling along together either learning or re-learning how to make it sing.
They are EXTREMELY helpful here in giving instructions and moral support. Damn Brit, despite his name, is a real sweetheart...quite knowledgeable...and only barks and bites when newbies (like us) fall into the bad habit of expecting to be spoonfed information.
So, I'm re-reading the manual tonight....what are you doing?