Update existing RSS feed contents
 

Some feeds such as the live scores from CricInfo:

http://www.cricinfo.com/rss/livescores.xml

update the items contents as the games progress. However, when the rss feed reader updates it doesn't recognise this and keeps showing the entry as it was when the feed is first added. Is it possible to force the reader to update the entire feed, rather than just search for new items?

Thanks