Feedburner not working with WordPress

For some reason feedburner kept saying that I have an invalid feed from my wordpress.  The feed works fine but I just couldn’t get feedburner to work.  I used a simple workaround; I setup my feed with Pheedo and then used the Pheedo link in feedburner.

Note: I am also using the feedburner plugin from http://orderedlist.com/articles/wordpress-feedburner-plugin/