Language interface

[Elsje]

hello,

I have an application that needs to work in different language.
For each form I have an xxxx.nl.rsx, xxxx.fr.rsx and xxxx.rsx with the default language (englisch)
When I run the application the program is always in the default languague.
On the screen I have also put the property localizable on true.

But the following System.Threading.Thread.CurrentThread.CurrentUICulture.ToString gives "nl-NL" as result.

Is there something that I forgot to do.

Thanks in advance for the help.
Elsje