Just a wild guess (since I'm no expert at all): could it have something to do with SEF?

Kind Regards,
Jos Frenken

That could be the case, but only if you was using a third party extension such as sh404sef

If not i've no idea why you get this. If you want to contact me at This e-mail address is being protected from spam bots, you need JavaScript enabled to view it and send me an admin account i could investigate deeper.

Best regards
John D.

John found out that the problem was caused by another extension wich had some effect on the Joomla SEF. Since this plugin (part of a component) also does some positive things , I decided to create a menu-item for each listed article in a hidden menu. Doing so both the JAMP-plugin and the "problem"-plugin can be active plus it gives me cleaner url's as a bonus.
I wan't to thank John for his help and will give a positive review in the JED!

Kind Regards,
Jos Frenken

Thanks Jos you are welcome!
And a 100 points review on the JED would be more than appreciated

Kind regards
John Dagelmore