737 MCP from Opencockpits problem

Hi,

Today I received my MCP panel from Opencockpits. I followed the steps to install everyting but I still have a problem. The panel works, and linking with FSX works aswell, I can use the panel and my default 737 responds to it, it adjusts speed, altitude, hdg,... like I want it. But here's the problem, the MCP panel always falls out after a little time (sometimes it's after 10 seconds sometimes after a minute) and then I have to open the 'soic_mcp.exe' file and press "reload" in order to start the hardware up again. But it's not possible to fly with a panel that always powers off.. Anybody has a solution for me? I use the latest version of FSUIPC which I registerd, but still it keeps powering off. I don't use an external power supply, just plug the USB into my computer.

Any help please?
Thanks!!

Kind regards,
Bart

you need the external power supply to work :)

Indeed, just bought one, and now it works just fine! Thanks! :)