Change Display Resolution

Right Click on Desktop > Display Settings

Change Display refresh rate (hz)

Right click on Desktop > Display Settings > Advanced Display Settings > Display Adapter Properties > Monitor > Screen refresh rate

Eyefinity with 2 Displays?

Go into Display > Additional Settings

where do i turn off all the video enhancements?

Currently you can only use the custom profile in video
its okey, it does not do that much to the video when everything under it is turn off

Where is Dynamic Range?

missing atm