Very wierd Views Feed Problem

Hi all

I have a very wierd Rss problem. My feeds from the views don't 'work'.

I've got the same website on 3 different servers.

Server 1 is a localhost (xampp), rss feeds report errors
XML Parsing Error: not well-formed

Now, i've got other sites working on this local host and producing feeds..

Server 2, is the production server. Also, reporting the same errors.

Now Server 3, is an extra 'dev' server. I've got extra webspace for online testing. This site DOES produce the correct RSS feeds from views.

So the I developed the site on my local machine, and moved to Server 3 ( rss working) for online testing. Feeds were working on both at some point in the past. Then more developement and testing, but at some point I stopped re-testing the feeds. Then I think the site is working, so I go to production. So at some point, my local and dev developments ( no SVN) became branched.

Now if I try to 'swap' files and databases, I can never create a new 'working' site with good rss feeds.

I've tried to swap the working database, into one of the non-working, ones, but nothing happens( no changes). So I reset the databases, and swap all the files, again nothing happens. So, its not the database and its not the files. But the servers have all produced/are producing working feeds. So its not the servers too.

So, is it the little green spiders that cron sends out?

Anyone have the tiniest clue of where i should start?

The problem xml files have 3 tiny dots before the first tag, which browsers won't read. So the browsers send out error messages.

Does anyone know the 'workflow' for how views produced feeds? Is this a file or db problem? A views issue? Am I going insane?

Mark