I downloaded the files in Opencockpits site (here: http://www.opencockpits.com/uploads/scr ... 37_NGX.zip ) to make my EFIS and MCP work on 737NGX, but only the EFIS goes well. The MCP digits goes on but the Altitude indicator just stay with only 3 digits on and the MCP don't communicate with the simulator.
Some informations:
EFIS and MCP (by Opencockpits) captain side;
Prepar3D v3.4;
Windows 7.
I know this files don't have Roar support, but I´m starting to make make home cockpit and I intend to buy his software in a future.
Please, can you help me to make MCP on?

Best regards from Brazil!