I have put up new posts since 12/25 and they are not showing up in the feed at all. I have used other browsers including Internet Explorer and the feed hasn’t updated there either — that is, with the new posts.
All the most recent ones — Doctor Who 2012 Christmas Special to the most recent Borderlands 2 DLC review — are not showing up in the feed. The feed stopped on 12/25/12 without adding the new posts to date.
I took a look and I can see all those posts in the feed. Could you send us a screenshot of the feed when you’re viewing this in your browser? You can upload the screenshot to your blog’s media library.