Dear webmaster,

I was trying to recieve your RSS feed (http://psychcentral.com/blog/feed/rss2/), but my RSS reader (Sauce Reader 1.10) was not able to show it. After checking the XML feed, i discovered the following:

******************************
Message: HTTP Protocol Error
Explanation:
The HTTP response from the server was invalid. This will prevent some aggregators from downloading the feed at all.

Solution
One common cause for this is WordPress’s “Last Modified” header (with a space, rather than a dash, separating the words). See WordPress support, or upgrade to a version that includes the fix.
******************************
Source:
http://feedvalidator.org/check.cgi?u...log/feed/rss2/

Hopefully, you can correct this. I am hoping to enjoy your feeds.