PG278Q Hz Problem, need help please

[Al_Jourgensen]

Thank you my friends for all your answers, i´m going for the last resort, and buy some thunderbolt cable to displayport, i really don´t understand what is going on, an neither Asus or Nvidia do, so i guess i´m going to try it....i´ll feedback when i´m done.....

By the way, does someone know where can i get a Thunderbolt cable to displayport, or an adapter?

Thank you all in advance