[ubuntu] How do I format a WD Passport HD (more)

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http://ubuntuforums.org – Firstly, I'm a complete noob. I don't even really know what "grub" is, etc. I'm an old-school DOS/Windows user so go easy on me please. ;) I want to format a Western Digital My Passport drive that currently has Ubuntu 11.10 on it. This is the drive that I have had Ubuntu on from the beginning, and I have had numerous problems after updating it to Ubuntu 12.04 LST. I first updated 11.10 on the drive online and when I rebooted everything went south. I tried updating it from a LiveCD but no go. I'm wondering whether or not some if not all of my problems are with old partitions/installs (Hardware)