Links not working?

["Jake <jake@olefsky.com>" <jake@olefsky.com>]

Hi,
  I'm new to the whole RSS thing, but I am excited about it and I have
added an RSS feed to my website for daily brain teasers.  My feed has
passed the validator test, and I think I am doing it right, but none
of the links are working from my offline RSS reader (NetNewsWire Lite
on Mac OS X) while other links for other feeds are working.  Could
someone please check my feed (its short) and let me know if I am doing
something wrong with my links?

http://braingle.com/rss.php

Thanks a ton,
Jake