steg

I had to use mame64.exe -verbose to work out which monitor I needed: O:\Games\mame>mame64.exe -verbose Attempting load of mame.ini Parsing mame.ini Attempting load of mame.ini Parsing mame.ini Starting plugin data... Attempting load of mame.ini Parsing mame.ini Attempting load of mame.ini Parsing mame.ini Video: Monitor 65539 = "\\.\DISPLAY4" Video: Monitor 65537 = "\\.\DISPLAY5" (primary) Direct3D: Using Direct3D 9 Physical width 1600, height 1200 Direct3D: Initialize Direct3D: Configuring adapter #1 = NVIDIA GeForce GTX 1060 6GB Direct3D: Using dynamic textures Direct3D: YUV format = RGB Direct3D: Max texture size = 16384x16384 Direct3D: Device created at 1600x1200 Direct3D: Initialize HLSL RawInput: APIs detected RawInput: APIs detected RawInput: APIs detected