well ok then i'll leave it disabled. but is joomsef not supposed to be compatible with JFrouter since joomfish 2.03? i'm using 2.04, and according to the docs, all my parameters are correct, except for the first one:
Language integration
This option must match the setting set in the JoomFish router parameters - only the include in path and use different domains options are available.
this option has to match the jfrouter one, but there's nothing in either one or the other that can match each other: see picture, it shows the parameters ine my jfrouter, so you see, there's nothing such as "include in path" or "use different domains" so i don't see how anything could match...