Hello, you may remember that my vortech was stalling out a while back and you had me send it in. I sent it in and it was supposed to be fixed. It ran well for about two weeks. Now it has been stalling every night for the past three days. I fiddle with it to make sure it is running as its supposed to but no matter what I do, eventually it stalls. The motor also seems to be running very, very hot. I took off the pin spacer and noticed that there were circles scratched into it in the center near where the screw holding the magnet is. I cut out a little circle to see if that would solve it, but its still running hot, and stalling. Is it possible the motor is bad? I ordered to new wireless driver, will this help with the problem. What can I do?