Hi, I'm using Win7 in Swiss French mode, Slic3r 0.9.9 and I have the same problem. I solved it when I found the right files : C:\UsersUserName\AppData\Roaming\Slic3r\slic3r.ini Change UserName... I meet the problem when I try to go in expert mode. I need to rewrite the mode in the file: change 'expert' to 'simple'. So... how to use the expert mode with Win7 in an other language than Englishby stedewa - Slic3r