Have spent extensive time on the phone with tech support to no avail. Have tried on 3 computers. 2 with Vista 1 with 7. Have allowed through all firewalls, even tried turning off firewalls. I have an Actiontek PK 5000 modem/wireless router from Qwest which has never had the firewall turned on. Have installed and uninstalled with rebooting the software several times. The little tv icon appears but never flashes or goes dark. Net TV works fine both wired and wirelessly. The only problem is mediaconnect. When right clicking the tv icon "stop projecting" is not a selectable option. Have tried cntrl+alt+p also. HELP!