hi everyone since you guys were so helpful with my last set of questions, i have another one for ya.. i have the microsoft office package on my macbook (2ghz, 2gb ram, 160gb hd, leopard). i've only had my mac for a couple days so until i get used to it (ive been a lifelong pc user) i've been attempting to keep a copy of everything i make on my portable external hard drive. so i wrote a paper in word on my mac and tried to copy it onto my external drive but it wouldn't work. i kept getting an error message saying there wasn't enough space to do it, even though there are 80gb free on the drive. i thought maybe it was a direct problem, so i even tried to save it in my documents and then drag it to the drive icon thing and it still wouldn't copy. anyone know why this is? could it be because my external hd isn't compatible with my mac? i can copy/drag stuff FROM the external drive to my macbook documents, just not the other way around. thanks in advance for any advice!