Blog Post Categories pages have stopped loading images

Well friends, the title for this help request says it all. My individual Posts are all loading images fine, and the images are loading fine on the Blog Post Content Element, but click on the Category links, and those pages are not loading images.

Ever seen anything like this?
The first link below is a Post, and it looks fine. But click any Category Link on the right and see what happens.

Let me know what you can do to help,
Richard