RSS Feed (Safari)

My friend just told me that ever since I switched over to Word Press, he has been having troubles with my RSS Feed (feed://feeds.feedburner.com/abgblog) in his RSS reader and his Safari browser. I know others who use the feed link with IE and Firefox and with Google Reader without a problem. I was wondering if someone could try it out in Safari if they have it to see if it is an isolated issue. Also if anyone has any suggestions, that would be great.