I placed a new banner ad under digitalpoint. It meets the size and dimension requirements but my ad is showing up as a text ad on the page when I click any of the "displayed on" links in the click/impression history. I am showing 391 impressions already tracked.
I would double check that you uploaded the right size image(s). If you want an ad to be an image 100% of the time, be sure you upload all 3 sizes. It will only fall back to text-based if you didn't upload an image of the size it needs.