So i've had a few problems getting an external USB drive to work with Time Machine and have re-partitioned it twice. Each time I found that If I simply named it the same Time Machine would IMMEDIATELY start using it. If I named it something different Time Machine would politely ask if I wanted to use the disk for time machine. Any how, I'm returning the disk as I've failed to successfully use it without disk IO errors. I'm going to get a different brand disk but I'd really like to clean up TM and get rid of any previous knowledge of volumes. How do I do that? Mark.