Well they finished rolling out that auto update color adsense units, and now my stats are screwed up. It appears if you DON"T go back and replace the old blocks with the new code then yours stats won't report the impression or clicks on that channel. I'm only assuming this though.
All seems OK for me.. Well relative to the page impressions I got. (Which are down, but so is my Google rank) I haven't tried the new add code yet, and my ads are showing up! Cheers James