Why won't Finder show computers in my network?

Hi guys,

Here's what's happenening... I have several Windows computers in my house that have properly been setup in the network. I can access every computer from any of the windows computers. I can even access my Mac from any of the Windows computers. The problem is when I want to connect to a computer from my Mac, my Network folder is blank. Nothing in there. So I tried connecting via the Connect to Server option in the Go menu. No problems at all. I can connect. So why isn't Finder showing them?