Hi all! I am using SMACH in order to model behaviour of our NAO robots with ROS, but even without ROS i have an interesting problem (bug): It seems to be in xdot in combination with wx using python. This is how i can reproduce the segfault: Python 2.6.5 (r265:79063, Apr 16 2010, 13:09:56) [GCC 4.4.3] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> import wx >>> import xdot (process:19370): Gtk-WARNING **: Locale not supported by C library. Using the fallback 'C' locale. >>> wx.App() Segmentation fault wx version is 2.8.10.1 xdot version is 0.4 Any suggestions? Do you need more information? Any help would be appreciated! Kind regards Sven