I have a 15 amp GFI circuit breaker that trips everytime the microwave oven is started. The microwave is not on the same circuit as the cb, and no matter what circuit in the house or garage I plug the microwave in, when it is turned on it trips the cb. If the microwave is off, everything works fine. I have changed out the GFI cb with a new one and it still does it. The only way it will work, is with a standard cb. Also, with the microwave plugged in a GFI receptacle, it does not trip it, but will still trip the GFI cb that is on another circuit. The microwave is new. Any suggestions??????????