I am having couple of macs and windows PC at my place. All are in network and working well. Last night I noticed that there is one PC in the network as "new-host-3". Initially, I thought that this is one of the PC's in the network but when I turned of all of them and unplugged that then also I was able to see that PC in the network. Yesterday I purchased a new Macbook pro and a wireless printer and I put those to the network. Can that be the reason for this problem. What is wrong with this, Can you guess that. Please let me know that. Please reply ASAP.