Even though you are using a surge protector, there could still be minor problems with your electricity provider that are giving you "dirty power". We lived in a house with old wiring and the electrical lines in the neighborhood were very old as well. We had constant problems with intermittent undervoltage situations and voltage changes and so forth. As a result, we got our money's worth out of those extended warranties on all our gadgets. We even had a dishwasher myseriously get a "bad board". Someone recommended a full UPS that supplies power from the battery all the time (and the "shore power" then recharges the battery), not one that switches over when the power fails. That seemed to reduce the number of electronics failures. Then, we moved and problem solved. Well, not sure if that's your issue or not, but hang in there and good luck.