Forum Moderators: martinibuster
Is it possible that you saw an "expanded" ad? If it was all text you could have been.
Yes, ads are mostly text even if you choose text/image, although it may also depend on the topic.
Plus, you would have to have a high number of self-generated pageviews to see an image ad. I don't hit, "refresh" a hundred times on my pages, but every now and then I will see an image ad.
If 1000 visitors hit your site, a few of them may see images instead of text on one page or more.