I bought a refurbished computerto hook up to my TV to watch Netflix. It has 2.80GHz Intel Pentium D-820 processor, when I watch videos in small screen its OK but very slightly jerky but if I put it in full screen its horrible, very jerky and unpleasant to watch. I'm not very techy, I tried it in a couple of browsers, Chrome was slightly less jerky than Firefox, not sure that's just coincidence or not. Any suggestions would be much appreciated. Thanks.