[modeller_usage] have problem running modeller 9.10

Hi,

I am trying to use modeller to model a chimera protein. I am going through the online tutorial and documentations. However I found that I cannot run modeller on my computer. I have a windows 7 machine with python 2.7 installed. The error message I got when I type mod9.10 model-default.py in command window is:

'import site' failed; use -v for traceback Cannot open logfile model-default.log: Permission denied.

I am in the same fold as the model-default.py file. Anyone know what is going on? Many many thanks.