Question RSS Feed error in Browsers

Hi
When using the RRS Feed in the Kunena Forum I recieve an error message in the Browser.

Error IE: This feed contains errors. Internet Explorer will try updating this feed again later.
DARQA - Forum
maandag 16 augustus 2010, 13:18:57

Error Google Chrom: Kunena Site Syndication www.darqa.org/ Tue, 17 Aug 2010 14:24:12 +0200 Kunena 1.5.12 www.darqa.org/components/com_kunena/temp...ch/emoticons/rss.gif www.darqa.org/ Kunena Site Syndication

What can I do to solve this error?

Thanks

Info:
Versie 1.5.20 DutchJoomla
Kunena 1.5.12 default template
Access to forum only for registrated users
Website template Red Evolution Blue Flex 1.1.2
Legacy mode in ON for use of components Docman 1.4.0.stable, Expose 4.6.2, Jobline 1.1.3.1 / Module mod_acajoom 3.1.0, all DocMan modules 1.4.0

Browsers tested:
IE8 W-XP Prof
Google Chrome v5.0.375.126 W7Starter

NB: Your RSS Feed on your Forum page does work..

Can you open RSS feed as a file and look what it contains. If there are errors or warnings in your site, it may sometimes break RSS by adding error messages in the beginning of the file.

Access to forum only for registered users! See RSS Feed for Registered Users? .

Because your forum is only accessible to registered members, there's nothing that the RSS feed can access because, in effect, you've locked it out. Kunena honours this standard W3C security convention. Allow public access and the RSS feeds will probably start working.

Thanks for your reply and support.

After changing the access rights to public the RSS feed did work!

This means that the members can use only the forum subscribe option and not the RSS feed option in my case (access only for registrated users).