Incorrect RSS feeds URL

Hello:

When SEF Advance is turned on, and the RSS Syndication feed (Module) link on the lower right side of the Home page is chosen, the following (dead) URL displays: www.landscapecreator.com/rss.feed and the visitor is returned to the home page. So no true RSS feeds are available in this state.

When SEF Advance is turned off (with Joomla SEF turned on), the correct (non-SEF) RSS Syndication feed URL displays: www.landscapecreator.com/index.php?format=feed&type=rss

I am using SEF Advance 2008 v2.1.4 and Joomla v1.5.14.

I wonder whether there is a conflict with another installed add-on.

I have tried disabling various add-ons but no fix yet.

Please advise.

Has anyone else come across this problem?

Thank you.