Hi Beverly. Sorry to hear you are experiencing these issues. Your Mini may be defective. Please get in touch with Technical Support directly at toll-free 800-447-8638 or firstname.lastname@example.org for help troubleshooting. Thanks!
Good Catch Beverly,
I've had that happen so many times. The thing that always clues me into my mistake, is the smell of burning wood. And of course my first thought is, "What the..., am I hitting a knot or something?" Then it dawns on me, "Hey knucklehead, you've got your drill running in reverse!" lol
Glad you were able to get your problem resolved. I've got a mini also, and I'm sure you're enjoying yours as much as I do mine.