Dear Sir or Madam,
as stated in Bugs #13206, #13207 and #13208 KSP is not working properly. I was refered to this forum since the devs assumed a problem with my installation. However i reinstalled KSP and could reproduce ALL bugs:
Bug #13206: Launcher: Apply and Accept do the same thing (nothing?)
Bug #13207: Launcher: Audio Settings All 0
Bug #13208: Cannot assign keys of 6-DOF
A screen capture (2:24) is available on youtube showing the behaviours. (I did not see an attachment button in this input view). Hope this clears the bugs up!
As a last note: I am a aerospace engineer, so when i come home from thinking about rockets irl, i start playing with them in ksp for funz :-) KSP is awesome keep up the good work!
Cheers Jens