BY THE WAY: ASUS is currently 50, - EUR credit!
IMPORTANT FOR THE SETUP:
Under Windows 8.1. the Monitor is running by default in 29 (!) Hz. The image is stable, but windows and mouse drag as a "gum" on the screen. The Monitor One must therefore make sure to exactly 60 Hz (!):
> Set "DisplayPort Stream" on DisplayPort 1.2 - - Only in the Monitor menu in the "System Setup"
- Then in Windows:> Advanced, and at 60Hz - Control Panel -> Display -> Screen Resolution
EDIT: It is better not to set the Graphic Properties from the Control Panel, but directly on the surface of the driver. So at Intel over the Taskbar-Icon "Intel HD Graphics". If Intel can namely differentiate between 59Hz and 60Hz. If you set in the Control Panel 60Hz, then provides the driver but may internally to 59Hz !! Result: "pull" all movements. After switching to exactly 60Hz everything reacts super fast.
EDIT 2: If one wakes up the monitor from the power saving mode, the settings are very often wrong again (59 instead of 60 Hz?), The windows behave again like "chewing gum", or act as you drag as of two parts assembled, the move independently. Simple Solution: Monitor off and on.
Apparently does something wrong in the communication between the monitor and driver. Why is it exactly, I can not say. Are just annoying little things, but with whom I get along well.
Only the operation of the monitor is very poorly resolved: keys behind the screen with the front faded in occupancy, one gropes around like a blind man. The keys have earned zero points, but since I need the keys only during the initial installation, I press time keeping an eye on;)