Joshua wrote:

How do you launch QET?

with bin\qelectrotech.exe, if yes, this is not the good way, you must lauch QET with Lancer QET.bat

thanks (confused), using bat file helped...

yes, of course.
it does not help.
initially language field is blank, after restart you can see some value, but actually language is not applied.

Hello!

"readytouse" version 06  does not change interface language from default although settings are applied and saved.
OS win7-64

the same story with portable versions 05 and 07

regards