NameError: global name 'v' is not defined

Here is a new bug report.

Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/matplotlib/backends/backend_gtk.py", line 303, in expose_event
    self._render_figure(self._pixmap, w, h)
  File "/usr/lib/python2.4/site-packages/matplotlib/backends/backend_gtkagg.py", line 70, in _render_figure
    FigureCanvasAgg.draw(self)
  File "/usr/lib/python2.4/site-packages/matplotlib/backends/backend_agg.py", line 382, in draw
    self.figure.draw(renderer)
  File "/usr/lib/python2.4/site-packages/matplotlib/figure.py", line 520, in draw
    for a in self.axes: a.draw(renderer)
  File "/usr/lib/python2.4/site-packages/matplotlib/axes.py", line 1401, in draw
    self.title.draw(renderer)
  File "/usr/lib/python2.4/site-packages/matplotlib/text.py", line 336, in draw
    bbox, info = self._get_layout(renderer)
  File "/usr/lib/python2.4/site-packages/matplotlib/text.py", line 185, in _get_layout
    w,h = renderer.get_text_width_height(
  File "/usr/lib/python2.4/site-packages/matplotlib/backends/backend_agg.py", line 241, in get_text_width_height
    Z = self.texmanager.get_rgba(s, size, dpi, rgb)
  File "/usr/lib/python2.4/site-packages/matplotlib/texmanager.py", line 310, in get_rgba
    v
NameError: global name 'v' is not defined

Nils