Am connected to a computer called Thomson!

Hello, I am a little new here and was really hoping that someone may be able to help me. I installed Leopard today and noticed that in my shared folder i have a connection to a PC called Thomson. I haven't set up the connection and am worrying that this computer may be able to see me files and personal information...

Has anyone else had this problem? I can't see a way of removing the connection...

or is it perfectly normal and am i just being paranoid...

Any advice would be brilliant.