Is you machine plugged into a good surge protector? Not the $10 ones.
A good one costs about $50 but it's worth it. Those computerized machines
take a lot of juice when you switch them on.
Don't forget to check those little lights (regularly) that indicate if your surge protector
is still working. A defective one won't do much good for your machine.
Even if that does not solve your problem it's still a must have for any computerized
machine.