Hi Guys, here is a update. I installed the IPTV stalker 1.0.18 but I found this morning or when I rebooted my system last night that IPTV stalker version .19 is installed. When I click on the setting i delete the stalker app and then the older version is then active. Dara i was able to use the stalker with out activating the serial number but then got authorization error after streaming for about 15 minutes when attempting to select another channel. I activated the serial number and then my channels worked. I hope this helps others.