[amsat-bb] SDX stops responding

Hello All,    This is probably  a windows issue but I'm curious if anyone else has seen it. I'm running windows 8.1  and about once a week or maybe two SDX will stop responding, closing satpc32 fails to kill it and I have to go in and manually kill it, I have tried many different serial ports usb/hard from the pc to the rotor controller,  a different controller, running satpc32 as admin, running it in compatibility mode for win 7 was the only thing that "maybe" slowed it down a little.

Have I missed something? anyone else see SDX  stop responding?

Thanks Kevin WA7FWF