Anyone know how to force custom resolutions out of a 7970? My nvidia card it was easy to create them but after much searching and trying several utilities I am still stuck at 30hz. The seiki 4k TV I am using runs 1080p 60hz from my Xbox 360 just fine but when I set lower resolutions out of the amd card it just scales and the TV detects it still being at 3840x2160 30hz. The TV worked fine by default 1080p60 with my 5 year old nvidia card too. Anyone have any suggestions? Running Windows 8.1.