I believe I am posting this in the right category. I'm writing to report something I noticed with the Magazine Columns free plug-in. I had investigated the Jet Pack plugin today, and didn't realize that I had enabled it. The home page of my blog (where I use columns) started showing twice (stacked head to tail on top of one another)! The top rendition was a version of the home page that had no theme attached to it, and the bottom homepage showed as it should. Turning off Magazine Columns solved the problem, but left me without the look and feel I desired. Through process of elimination I discovered that the Jet Pack plugin, which I had activated in error, was the plugin that was causing the trouble.