I have recently bought a new Pinnacle PCTV 110i TV tuner card that has come with a Dish TV connection which is setup via a set top box. I also got 2 cds with which is Pinnacle PCTV MediaCenter version 4.21 EU/AS/US/Windows XP 06/06 and Pinnacle Studio QuickStart Version 10 EE/SK/AS REV 10.5.2 Windows XP. Since I am using Windows Vista on my computer I first installed the softwares from the CD that I have got and then upgraded the same by downloading and installing it from the manufacturer's website. But when I tried to install it then it gave me an error message that “PCMLoader.exe is not loading”. Now I can see the setup menu but I cannot scan the channels and see them. Also when ever I start my computer then I get another message saying that “DeviceInstall.exe from Unidentified Publisher wants access to your computer - Allow / Cancel”. Can anyone tell me how do i solve this issue?