The problem might be what you are plugging then into. When I first moved into the place I am living, I started blowing power supplies on my pc. HP finally suggested that an electrician might be in order. They were right. The circuit that the outlet was wired into had some kind of problem that caused anything plugged in to eventually fry. It had something to do with imbalanced voltage or some shit. I am not an electrician so when he explained it, he might as well been speaking in Klingon. New breaker, new wires and new outlet. 3 years later no problems. I hope your solution is easier than that.