so today my porter cable started acting up. it seems to shut itself off every now and then, but if i somewhat move around the power cord coming out the back of the pc, it seems to start working again. however, if the power cord moves significantly it shuts off again. i've had the pc for less than six months and it's seen very little use. if it is the power cord, is this a fix i can perform myself? according to the porter cable website there is a service center about 30 min away, would it be better to take it to the service center?