my xml file looks like this:

<?xml version="1.0" ?>
<rss version="2.0">

<channel>

<title>My Wesbite</title>
<description>Website Description</description>
<link>http://www.mysite.com</link>

<item>
<title>News Item Title</title>
<link>http://www.mysite.com/news/20090428.asp</link>
<guid>http://www.mysite.com/news/20090428.asp</guid>
<pubDate>Tue, 28 April 2008 15:00:00 GMT</pubDate>
<description>28.04.2009 - Headline of news item goes here</description>
</item>

</channel>
</rss>


The other readers all display the correct dates, just seems to be Yahoo! playing up.

It displays the correct date when the item is unread, but once the item becomes a day or so old the date always says 'one year ago'

Thanks