On 23rd Oct 2007, my channel report is totally screwed up. The entire day I had around 700 clicks, but when I view the clicks by channels, all 5 of them show only a total of 28 clicks. My average daily clicks ranges from 600 to 1500 clicks. I just double checked my scripts, and the adsense part is fine. The main report does show the total clicks, just the channel report is showing bizarre values. I believe this started sometime on 22nd Oct 2007 because in aggregated data it shows I had around 800 clicks, but Channel data only shows ~200.