Hi,

Try running the modeller "as administrator". Right click the modeller exe file and click the option "Run as administrator".

Just found this on google.

Pls try and let me know if it works. :D

> Windows Vista has stricter security than older versions of Windows;

> it won't let you write into a directory that you don't own, so it

> won't let Modeller create log files there (or any other output files,

> such as models). Make a new directory, put the files there, use the

> 'cd' command to change into it, and then run 'mod9v7'. Don't run

> things directly out of the Modeller install directory.

>

> Ben Webb, Modeller Caretaker

http://salilab.org/archives/modeller_usage/2009/msg00250.html