AutoMotion plus question for HDTech

So previous to this I owned the Samsung 50 in plasma PN50A450, I mainly used it as my PC monitor although the only resolution was able to get was the 1360x768, So I recently built myself a super gaming computer and decided it was time to upgrade to a 1080p 120hz tv. So yesterday I went out and bought the Samsung LN55C610 . 120hz was a pretty big deal for me since I play a lot of game on my monitor and do a lot of movie watching through my pc. So When i got the TV home I immediately plugged my pc into the hdmi 1 input turned it on, my compute realized it was a 1080p screen and adjusted my resolution to 1920x1080, but there was a problem, The whole screen was stretched, I could barely see my start menu.... weird... SO after messing around in the menu I found the ONLY way for the 1920x1080 to show correct was to go to the Source list and Edit Hdmi 1's name to PC Which on the PN50A450 had no bearing on anything since it was just a name... So I was looking to enable to Auto Motion plus feature because as I said I play a lot of fast motion FPS games and i do watch a lot of movies on my PC no different then any Console, But after much digging and searching on the internet I found that apparently AMP is disabled for any input labeled PC , which is absolutely ridiculous and i cant make my resolution show correctly on the panel unless its name is pc so going to the other input names where AMP is enabled is useless, Samsung should give me the option to use AMP on my pc as it is no different then a gaming console. Is there anyway to get around this silly issue?

Movies 24h | Dmart.vn