Comment 3 for bug 899753

1. I start glyphtracer using the terminal.
2. Select the file from my desktop.
3. Leave char set at "lowercase latin"
4. I select the "A" in the third row, 9th column.
5. I click export & get the error.

System details:
Ubuntu 11.10 64bit
Python 2.7.2
Potrace 1.9-1
python-qt4 4.8.5-0ubuntu2