Hi, I am currently using 4864.
Although I had tried to remove and reinstall High Fidelity, I could not see objects and avatar on the screen.
But I could hear the sound (e.g. clock) and could see the background.
I just format and reinstall the computer a few days ago, but same things happens.
Alienware 17 R2
OS: Windows 10 64bit build 10586
GPU: HD4600 + GTX 970m 3G + External Graphic Amplifier (with GTX 970 4G)
GPU Driver: 365.10
Storage: 256G SSD x 2 (C and D, OS is installed in C, and Hight Fidelity is installed in D)+ 1TB HDD
Display Resolution: 1920 x 1080