hi. couple weeks ago i had bought a new Acer notebook R11 with windows 10 and has 4gb ram. the problem is when i open a media program some feature become stuck. for example when i'm open music or movie player, my cursor did not move properly, it's stuck every second. secondly all games i have install not run smoothly. i've try on gta 4, asphalt, and even on mario games. what should i do?