windows 7 is supposed to play media on other computers on the network. the first step is to add a device in devices and printers. but my computer does not see the other computer. it sees it in network but not devices. one is windows 7 ultimate, the other is windows 7 home premium. both have allowed streaming. I even put them in a home group. still can't see them in the device window. the firewall is off for both computer. no other firewall is running. how can I add my computer to device list for media to play.