Weirdness. I just noticed that after upgrading to 3.4.1 from 3.4, I no longer have the ability to select a featured image for my posts. It's not in the right-hand side of the Add New Post page, and it's not available from the Media window that pops up when I add an image to a post. Any insights would be appreciated. I did create a back-up before upgrading, but I'm hoping there's a better quick-fix.