On the front page of my site, I decided to add a recent tweets box from Twitter. This is as simple as grabbing HTML code from the Twitter site and pasting it into a template file.
When I did so, though, the "Most Read" box disappeared. It's not located near the Twitter box and the Twitter box does not interfere with its space at all. Now it just says "Most Read" but displays no stories. When I replace the Twitter box with any other piece of code, including a "Follow Us on Twitter" button, the Most Read stories reappear.