Hello, My problem seems to be having a PC and MAC exxternal hardrive that i have used in the transition from PC to Mac. I bought a 2Tb mybook essential to transfer all of my photographs to my new mac. I connected it to my pc to get the pictures, now that i have my mac i have tried to access the files. I can open and view them. But im unable to write anything on the hardrive. Even files ive opened up that were on the hardrive that i tried to save again. Im unable to drag and drop anything on the drive. If theres any tips or tricks to format or solve this please help!