I am a relative newbie as I have only lived with an iMac for a year. It still springs surprises.

Perhaps some one can help me with my latest concern?

I have recently installed a Time Capsule. When I open up Time Machine a Finder window opens and, strangely, the Devices list shows my machine as Louis Potter's iMac(3). This (3) puzzles me. If this is no 3 example where are the other two? Have I unconsciously generated several identities? If so how can I find them and delete them.

I would appreciate any guidance.