I have a new site which hasn't been officially launced and is still in the sandbox - of course, it doesn't get much traffic. Today it is showing about a dozen adsense clicks and ZERO ad unit impressions. The clicks didn't come at once, but over a 6 hour period. Has anyone seen this before? Also, my overall ad unit impressions have seemed very low the last couple of days, but the total number of clicks seem about right. My website logs seem to indicate that google isn't counting all the visits (although they never match). This makes my Page CTR over 25% - which is higher than normal (although revenue isn't higher because of the lower ad unit impressions).