Need help with view home network.

This is starting to upset me. I have a PC at home that holds all my media files. I had my mac set up to to view my network and access those files. Well sometimes the computer's name is in the network option others it isn't. It is really getting annoying. Can some one help me out here.

 

cool i did it and we will see if it worked. I was funny because i had just restarted the laptop and still nothing was listed in the network. But when i selected connect to a server from the go menu i clicked on Browse and there it was listed in my network section. Thanks