hi, i dont have the sure, but i belive that is because of graphic card...diferents graphic cards have diferent definitions of screen....you can try see if your drive of graphic card is up-to-date :) if they are outdated you only need updated them to see if the "problem" is solved :)
If you use windows 10 never let windows 10 install generics drivers....the generics drivers from windows 10 are bugged :) Allways use drivers from manufacturer and dont use beta vrsions ony the signed versions :p only use the beta's if are to some "dangerous" problem :)
