i deleted the config file. i see the traceback reaching line 627, ui = Ui_MainWindow() line 47, self.gui_opts = parse_config(self,GNGEOGUI_CFG_FILE) finally, line 19, f = open(filename) then i see IOError: [Errno 2] No such file or directory: '/home/user/.gngeo-gui/gngeo-gui.cfg and finally i see Segmentation fault. so it seems it's segfaulting after the config file loading part??