Hi we're running three adblocks and one linkblock on some thousand pages and track every block with a specific channel code. What happend:
1) We changed the format of linkblock and forgt a ' in the adsense code when copying.
2) the linkblock showed parts of an alternate ad of another site of ours in firefox for a few times
3) then everything looked ok but the long standing CTR of another adblock on those pages tanked to less then a 1/10th of the old value. It stayed low for thousands of PIs and a few days.
4) we changed back to the orginal layout but it doesn't help. It stays down. All other adblocks work as before.
Any idea someone? Any way to "reset" a page?
