CSS buttons per language

Hi all,

I experience a problem after updating my scriptcase environment, I get an error starting my application, something like this:

include(C:/Program Files/NetMake/v9/wwwroot/scriptcase/app/MyApp/_lib/buttons//LTR.php): failed to open stream: No such file or directory

After searching, in code and in settings, I found that it has something todo with the fact I execute sc_set_language(‘nl’); in ScriptInit of the logonform.
Looking further, I guessed it might have something to do with the CSS for the buttons, so I looked into ‘Layout’ -> ‘CSS buttons’. In that dialog I get an empty screen once I select my application language (Dutch Belgium).

How does this work, I guess somewhere there is a link from the language (Dutch Belgium for example), to a folderstructure? Is this link missing, where can I find it?

Lost a couple of hours already on this one…

thanks, regards,
Glenn