Unable to pull content from certain feeds.

This is a list of some feeds that are having issues in the aggregator module. They can be added but no content will be pulled from them. In random times where content is pulled, it seems the content is pulled incorrectly and the link to the post is actually the link to another post.

http://myblogbyzippy.blogspot.com/feeds/posts/default/-/Planet-Ubuntu-QC
http://feeds.feedburner.com/Astucesubuntu
http://jeff.ecchi.ca/blog/category/planet-ubuntu-qc/feed/
http://blog.cyphermox.net/feeds/posts/default/-/ubuntu-qc
http://idle-one.blogspot.com/feeds/posts/default/-/Ubuntu