I bought my PG278Q couple weeks ago, working perfect!
Now I can't change the Refresh rate in games, it just shows the current refresh rate.
I reinstalled windows 7, clean install of Nvidia drivers on 337.50, couldn't find a solution.
Does anyone else have a solution?
-Ricofizz
EDIT:I downloaded the file in others on the asus website:
http://www.asus.com/Monitors/ROG_SWIFT_PG278Q/HelpDesk_Download/, went into Device manager, the monitor and then update driver. I manually selected the file in the folder i just downloaded from the site and now it properly works again. (Install with right mouse button on the INF file didn't work)