I have a windows 2000 pro, 1 desktop windows 2000 pro, 1 laptop windows xp connected in a workgroup through wireless router. I am able to share files, print etc. I am trying to add another laptop that has the Windows Media Center (WMC). I have tried everything you can think of and I cannot get this computer to view other computers in workgroup and obviously I cannot share files or print etc. The other computers can see the WMC but cannot access it. I am completely at a loss. The only thing I have not been able to do is ping the other computers b/c I dont understand how to do this. HELP!!!!!!!!!! I am rating this as Urgent. Thanks!