You do not have extended screens and your resolution is wrong.
The solution for me was to plug my oculus into the HDMI port and my normal screen in the VGA port, this gives your oculus priority, then with my oculus connected and turned on i will be presented with the option to “duplicate desktop” or “extend desktop across these screens”
as long as your oculus is the priority it will fire up any fullscreen executibles you run
then you simply use the power on and off buttons to exit your normal monitor and enter your oculus monitor.
This may not be the best solution but it works, and it solved my double screen/two screens sideways problem with the DK2, games that work out the box with just console command FOV 120 and adding
fSafeZoneX=0
fSafeZoneY=0
fSafeZoneXWide=250
fSafeZoneYWide=80
more info here
http://www.oculusriftinfo.com/tips-getting-skyrim-working-with-vireio-perception-2-0-and-the-rift/