I’ve just installed Piplay 2.0.5. With 1.1.92
I’ve had no problems. Since 2.0.5 I’ve got the “SteamVR Not Ready”
error, as well as “Compositor is not available” (400). When I click on
“Launch Composito”, I get a windows with “Shared IPC Compositor connect
failed (306)”. Win 10/64, Nvidia GTX-970, 382.53 drivers.
Just made a clean reinstall of the nvidia drivers. Also a clean
reinstall of Piplay 2.0.5 as administrator, with the antivirus off and
internet disconnected. No effect.
In my “Manage 3D settings”, in the Global Settings window, I have no
row with “Auto-select” either in the first column (called “Feature”),
nor in the second column (“Setting”). And “auto-select” sounds like a
parameter value, not a parameter/setting name.
Also, downgrading to 1.1.92 made it so now Piplay does not even find the device, it stuck at the rotation radar dispay.
I think that by now I’ve tried all the advice that I could find on this forum. What’s left to do? A Skype/Teamviewer session?
(of course this had to happen the week-end I finally bought Elite:Dangerous on sale at 7€ 
)