BTW, I had no problem doing this on 2 vista laptops and 1 XP netbook.
My little windows 8 netbook however kept giving me access is denied messages when I tried to save the .ini file. Disabling avast did not help. I got around this by going directly to notepad, right clicking on it and choosing run as administrator, and then from there opening the .ini file, editing and saving it and it saved. I mention this in case anyone gets an access is denied message as this may help.