I have always been a PC user. Recently switched to MAC. I purchased the new Macbook Pro with 2.80Ghz. I have 2 PCs running Windows 7 RC1. I entered the workgroup name in the Airport utility, turned file sharing on. Also installed XP Professional via VMWare Fusion. I can access my shared folder on both the PCs running Windows 7 RC1 and also from XP Professional via VMWare without any problem whatsoever. However, in Finder when I GO to Network, it doesn't show anything at all, just a black screen. I cannot see any PC at all. Since all the PCs can access my shared folder without any problem, I believe there is no settings required on PCs, but something is missing in MAC setting. Please advise what shall I do?