Hello all, I've hooked up a Samsung Blu-Ray home theatre system to my home network via network cable to my modem/router. When I run the Network test on the Blu-Ray player it says the network is working fine but only picks up my Windows XP PC. It can't see my other two Windows 7 PC's. Both have media streaming turned on in the Network and Sharing Centre and I have also tried uninstalling my anti-virus software but it made no difference. Any ideas?