So I've been working away setting up my PinballX cab that I built myself and ran into an issue with switching the primary display and secondary display around for using the backglass screen for some other games in full-screen mode.. After a lot of searching I came across this nifty tool that also has command line interface. http://www.nirsoft.net/utils/multi_monitor_tool.html I have yet to try it, but am hoping it will provide the solution I need. Has anyone else tried it? Or does anyone else have other suggestions for switching primary display.