Hi all. The reason why I am asking for help on the forum is a problem with sat dish setup that I have had for the last month. Half a year before it, It had been working fine. But a month back one day I could not find around half of channels. Trying to scan again, I noticed that I cannot find channels of V polarity. Only H. I am using tv tuner Technisat Skystar HD 2 PCI in my PC and circular LNB. Software - DVBViewer Pro. By now I have tried as follows: - Tried to install the tuner into other computer. No result. - Returned the tuner to shop and got a new one. No result. - Changed LNB to a new one. No result. - Checked voltage from the both tuners (the old returned one and the new one). It changes from 13 to 18 and back. - Checked voltage on the end of cable going from the tuner to LNB. Voltage changes. What else can be a problem? I do not understand. Any help appreciated.