Question rss still not working

I posted about this before but work commitments meant I couldn't get round to getting to the bottom of it.
Now I can.

If I click on the rss button I get a feed url which is:
intranet.iit.local/people/forum.html?func=fb_rss

But the feed never gets updated.

Below is some info that was asked for in an earlier.
The standard joomla syndication works.

Joomla version: 1.5.11
Kunena version: 1.10
mysql server version: 5.0.67
php version: 5.2.6-2ubuntu4
php max_execution_time : 300
php memory_limit : 32M
safe_mode : OFF
Joomla template: yoo evolution v.154
Kunena template: default_ex

Hello,

this is strange, it may be a bug, I will report this to the DEVs

Good idea, xillibit.

@yellowdog: looks like you're using some kind of SEO/SEF improvement, too. Standard Joomla SEO or a third-party one? Have you attempted to disable the SEO to see if the problem disappears?

Hmm.. That link seems to be local url, so I cannot check it.

Yeah it doesn't work with standard J! seo on or off.
Don't use anything else for SEO.

That's an odd URL. Are you running this on some company's intranet?