I tried your simple example and I have indeed the following crash when I tried to print preview : --------------------------------------------------------------------------- NotImplementedError Traceback (most recent call last) /usr/lib/python2.5/site-packages/matplotlib/backends/backend_wx.py in OnPrintPage(self, page) 2057 2058 renderer = RendererWx(self.canvas.bitmap, self.canvas.figure.dpi) -> 2059 self.canvas.figure.draw(renderer) 2060 self.canvas.bitmap.SetWidth( int(self.canvas.bitmap.GetWidth() * vscale)) 2061 self.canvas.bitmap.SetHeight( int(self.canvas.bitmap.GetHeight()* vscale)) /usr/lib/python2.5/site-packages/matplotlib/figure.py in draw(self, renderer) 610 611 # render the axes --> 612 for a in self.axes: a.draw(renderer) 613 614 # render the figure text /usr/lib/python2.5/site-packages/matplotlib/axes.py in draw(self, renderer, inframe) 1340 1341 for zorder, i, a in dsu: -> 1342 a.draw(renderer) 1343 1344 self.transData.thaw() # release the lazy objects /usr/lib/python2.5/site-packages/matplotlib/axis.py in draw(self, renderer, *args, **kwargs) 591 tick.set_label1(label) 592 tick.set_label2(label) --> 593 tick.draw(renderer) 594 if tick.label1On and tick.label1.get_visible(): 595 extent = tick.label1.get_window_extent(renderer) /usr/lib/python2.5/site-packages/matplotlib/axis.py in draw(self, renderer) 168 if self.tick2On: self.tick2line.draw(renderer) 169 --> 170 if self.label1On: self.label1.draw(renderer) 171 if self.label2On: self.label2.draw(renderer) 172 /usr/lib/python2.5/site-packages/matplotlib/text.py in draw(self, renderer) 773 def draw(self, renderer): 774 self.update_coords(renderer) --> 775 Text.draw(self, renderer) 776 if self.get_dashlength() > 0.0: 777 self.dashline.draw(renderer) /usr/lib/python2.5/site-packages/matplotlib/text.py in draw(self, renderer) 325 326 renderer.draw_tex(gc, x, y, line, --> 327 self._fontproperties, angle) 328 return 329 /usr/lib/python2.5/site-packages/matplotlib/backend_bases.py in draw_tex(self, gc, x, y, s, prop, angle, ismath) 381 382 def draw_tex(self, gc, x, y, s, prop, angle, ismath='TeX!'): --> 383 raise NotImplementedError 384 385 def draw_text(self, gc, x, y, s, prop, angle, ismath=False): NotImplementedError: Not familiar enough with all this to be of much help here... Johann