Over the past couple of days, i am unable to track some clicks. I have my ads over my homepage, and and more domain. I have created custom channels for every ad layout. And I have also created URL channels. When i see the reports, there is a clear mismatch between custom channel report and the URL channel report. The point is, ... I don't know from where the clicks are coming from ! The custom channel and the URL channel reports used to almost match in the past. But this is a new trend that i am seeing. Anyone else seeing this ? I am seeing that there are major clicks happening on Ad Link Units. Is something wrong ?