[Ifeffit] Running Examples for larch

Hello Dear all, I am struggling to run the larch-0.9.27 examples.

From previous email messages in IFEFFIT info page I managed to install larch and the icons appeared in my desktop (see attached picture larch_1)

but when I am trying to run the example http://cars.uchicago.edu/xraylarch/xafs/autobk.html#examples I received this message (see attached picture larch_2) what is happened? what is the working directory of larch? Is it like something python ? If you use the commands import os print os.getcwd() you 'll find your working directory and after you can run your modules? Many thanks Regards Panagiotis