My RSS feed doesn’t validate..displays as html??

Well I took the plunge and upgraded to WP 2.0. Since that has happened my feeds are publishing as html. Clicking on them displays my regular front page.

Feedvalidator says: It looks like this is a web page, not a feed. I looked for a feed associated with this page, but couldn’t find one. Please enter the address of your feed to validate.
Sorry

This feed does not validate.

My feeds are at:
http://www.erniesthings.com/?feed=rss2
http://www.erniesthings.com/?feed=rdf
http://www.erniesthings.com/?feed=atom

Strangely my comments validate fine:
http://www.erniesthings.com/?feed=comments-rss2

I’ve tried it with all my plugins disabled and got the same results.

I don’t mind hacking around with stuff, but I’m no expert.

Thanks for the help

Ernie