80GB USB HDD & No Permission

[Willis Taylor]

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I have an 80GB harddrive that I formatted with a Gparted Live CD to be
ext3. I purchased a USB case for external use and the drive mounts with
no problem. When I try to back up my home directory by dragging and
dropping I am told I do not have root privilege and when I look at the
permissions for the drive they are all grayed out. 

Help please.