hmmm … okay. then it is a strange problem. but if other users of the mc7000 have the same problem. maybe some one has fixed it, and could give a hint. it seems to be a driver problem. maybe with usb driver or else. try to use drivers from the chip manufractor directly, instead of microsoft drivers. I had allway bad luck with microsoft drivers. I had a simary issue with my DAW, but it is fixed now. It was a “microsoft service” which allways called the problem. I stopped it in registry, and then the issue was gone. I will look for that service name, and call it to you. Maybe it is the same stupid service, wich causes the problem.