[Eric] eric5 crashes Python on Windows 7

[Jeffrey]

I have eric5 installed on Windows 7.

If I go to Settings > Preferences > Application and tick Single
Application Mode,
the next time I start eric5 python.exe (or pythonw.exe) crashes.

If I start eric5 with --debug it shows "DEBUG:root:Importing
Preferences" and then crashes.

To get eric5 start again I have to change SingleApplicationMode in
eric.ini from true to false.

I installed eric5 on Ubuntu 10.04 and there everything worked fine.

Jeffrey