chanad on "Feeds Don't Validate After 1.5.1 Upgrade"

I just upgraded to ver 1.5.2 but when I try to validate my RSS2.0 feed I still get the relative URL error:

line 40, column 3: content:encoded should not contain relative URL references (88 occurrences) [help]

]]></content:encoded>

My feed is: http://chanad.weblogs.us/?feed=rss2

But temporarily I've changed the option in the admin panel to show only the summary rather than the full text of the post. This fixes the prob temporarily as it removes all URL links. But I'd like to be able to show the full post in my feeds.

Does anyone know how to fix the problem?

Thanks