I had the same problem but I decided in the end to play it at 1080p on a 28" monitor. I sacrifice clarity (a bit) for still a decent resolution.
I agree that support for 4K is almost non-existent especially in Windows 7 software.
For others interested in buying cheap 4K monitors be careful of the advertising. I got a ViewSonic on boxing day and really got screwed as it's 30fps at 4K.
-
#Steam AliasWL%Streak
- 1.42463.871+2
- 2.659233.739+2
- 3.300162.649+1
- 4.286110.722-2
- 5.12343.741+1
- 6.310114.731+6
- 7.193100.659+3
- 8.10829.788+9
- 9.370283.567+3
- 10.1171650.643+2