AdWords Impressions Slowed from Many to Few

Problem? : Automatically optimize ad serving for my ads

[lorenbaker]

I've noticed that over the past two day my ads have not been showing up in the Google AdWords results. Although the ads are geographically targeted, the impressions and daily spend has always been quite high.

Then I noticed this defaulted check box in our settings:

Automatically optimize ad serving for my ads

IS this new?

Could this be the culprit?

Maybe I should uncheck it!

Please advice - thanks,
Loren

[andla]

I have read somewhere that this feature lets your ads be automatically swapped to test wich ad gets the best CTR. The winner displays more often than the others.

I don't know if it is new but I've seen it for some time.

Sincerely
Andla