Oh thank you, marinae, a thousand times!!!
As eskaigualker suggested the little hack within qtransalte.php worked OK for me as long as my site is already up and running and as long as I don’t plan to blog or add a lot of pages later.
Else I experienced problems creating content while the plugin was running. Slugs got mixed and the body text simply disappeared.
Subscribing.
qTranslate simply is the best multilanguage plugin for WordPress. I’m looking forward to use it in WP 3.9.1 as well. Please update soon.
Kind regards
