One more thingy I noticed is the total of page Impressions adsense show in reports is wrong. When I click on the "top channels" link, I see the total actually is and the total actually shown is less by about 20,000 impressions. Why? It shows correctly only when I click "view all AdSense for content channels »" and this difference is evident even in the earnings When I click on "This month, by day" again it is showing wrong earning calculations.
I get roughly 120% more clicks due to more sites opening but the total expected earning has went down roughly 30-40%. That is really bad.