Eric,

Something with the google ads I noticed today when I clicked on the Audi S5 link:

Sometimes the links open a new window, sometimes they just take over the existing window.

It's seems to be random as I clicked on multiple ads at different times, and they all opened at least once in each scenario.

Any ideas? Also looks like some of the ads are htlm adn some are flash, but that didn't have an impact.

 

I think Google determines what happens when you click an add. I don't have any control over it.