Error starting wxpython v.digit session

[epatton]

This error is printed to the Layer Manager output window when I try to start editing an existing vector. I select "Digitize" from the drop-down box on the Map Display, and then select the name of my vector under the left-most drop-down box in the Map Display. The Map Display doesn't draw any of my GIS layers, but goes completely white at this point.

I have rebuilt the vector topology, but the error still occurs. I have tested the wxgui digitizer in a different mapset with a different vector, with the same error occurring.

~ Eric.