I have a PC home network and want to be able to join my IMac to it. The IMac presently is attached to the router and able to connect to the internet but cannot be viewed on the "My Network" on the PC because it does not have the same network name. I need to change the workgroup name in the IMac to be able to see it but am having difficulty finding where the name is listed and how to cahnge it. Could use some help.