I suggest reading this before you start changing stuff to fix a problem that may be posture induced:
http://sheldonbrown.com/pain.html#posture
The sections on "Fingers," "Hands," "Wrists," and "Posture" may be particularly insightful. They were for me.

Oh, yeah. I also suggest marking with a permanent marker before making adjustments. This way if you don't like the new position of something, you have a reference point to take it right back to where it was, or make another adjustment.