Someone clicks on an ad, then hits back to your page. This wont cause the page to refresh so its still just 1 impression, then they click another ad.
There are a couple posts now reporting strange things. My stats are what I would normally see an hour or so into the day and even then they don't look right.
Isn't everything on the internet instant? Just wait for the datastores to update, they will synch and all will be fine...
Its very much possible .... may be that person opened more than 1 adds by pressing shift in a new window... Its like very much possible ... on one page of my site i get such kind of thing very ofter and the surprising fact os that CTR of that page on an average is 40 -50%
i once checked stats right after the day has changed. i had 0 impressions and 2 clicks. my believe is what happened was this: the page was loaded one day and clicks were made the 2nd day.