After doing some debugging and research, I’ve been able to fix the problem with my RSS feeds. It turns out that it hasn’t been working since I installed WordPress 2.6 several weeks ago. I removed extra line breaks from the end of several PHP files, and voila… it’s back! I’m not exactly sure which was the offending file, but it’s safe to say that none of your PHP files should have any line breaks after the final $> closing tag.
Thanks to Keyvan for getting the word out about my blog today. Some new visitors alerted me to the problem.