I have a Lacie External Hard Drive that I had been using with my Windows system. Now, I decided to transfer some of my stuffs from my MBP to this Lacie External, however, it won't allow me. It keeps giving me warning that "Lacie External Hard Drive Cannot be modified". I had tried to modify the "Lock" property from "Get Info" but its option is grayed out.. I am unable to change it.. Please help me, I really need to use this external in order to backup some of my stuffs..