I've been searching for a solution on this one for over a month now but no luck. I've even e-mailed the plugin author but no response :(
I'm using qtranslate with WP 2.5.1 and it works like a charm... except for one thing.
Everytime I specify a custom permalink structure e.g. /%postname%, I get a 404 not found. I've managed to make the default language work by using index.php/%postname% as permalink structure but still, the 404 not found page apears when i switch language.
I would really love to get away from the default permalink structure (?page_id=7&lang=en), so if anyone knows, please please please let me know. It would be greatly appreciated!