Hi Folks. When I open Qsynth, I can rotate the various controls, but clicking on any of the buttons causes it to crash. For example I click on the "Options" button, the options window opens momentarily, but is blank, then Qsynth goes out to lunch. When Qsynth is opened without messing with the buttons, Qjackctl shows fluidsynth available as an input port, so that bit is working ok. Starting Qsynth on the CLI gives me this output, see below. [djmons@myhost ~]$ qsynth Warning: no locale found: /usr/share/locale/qsynth_en_US.qm Segmentation fault [djmons@myhost ~]$ I'm totally clueless about locales, but could this be the problem? Looking in /usr/share/locale there is no en_US locale. There are a bunch of en locales though (en, en@boldquot, en@quot, en_CA, en_GB) Looking at when I started Qsynth on the CLI as above, it shows a segfault, but the GUI for Qsynth is still showing. It's only when I click on a button that it crashes. Can anyone confirm that they have Qsynth working as expected? I don't want to post a bug report if this problem has something to do with locales on my install. Thanks for any help on this problem. Nigel.