<snip> To bad, it wasn't that easy :) Everything is as they should be as far as I can see.
Do you use any other Qt software or KDE? I guess you have tried and it the characters works there? If they work they problem may be: 1. something gone wrong with the compilation of the Qtlibs. 2. somthing gone wrong with LyX like the keymapping. I do not know anything about this Maybe you could try to use somother keymaps and see if those work as they should (lyx-option->Editing->Keymaps/mouse) Ingar