What a fascinating issue to be having!
First thing I would rule out is your home electricity. Do you have any other problems with flicking lights or power surges? Is your electrical panel equal to the modern demands?? If you still have fuses are they all secure and in good condition??
Do you use a surge protector? While I'm pretty confident in my power and such any thing over $100 and/or computerized is plugged into a surge protector first. I would first try that at the outlet you use. Then you can leave set up and just use an extension cord to try a different outlet. Then I would try physical placement to see if it does the same thing in a different corner of the room or house.