The initial joy on this receiver has been cleared relatively quickly. Since this is already my 2nd Gigablue Quad I have to say that it probably has to be fairly large tolerances in the manufacture. Since heat caused permanent failures were the result, which is not the case with my other Gigablue Quad. The heat problem can I have through a Lüftermod eliminate what course not the purpose is of the whole. In various forums is also often pointed out this problem. btw. good for hobbyists, but not for people who just want to watch TV.