I have recently bought an older home and I am in the process of remodeling it. I am chagninf out the old brown electrical recepticals with new ones. When I tested the old receptical it was "hot" on one side and not the other. I carefully looked at where the wires were hooked up at and replaced the receptical with a new one being sure to hook up the wires in the same place as the old one. Now the receptical is "hot" on both sides. Is this something that I did wrong? Do I need to worry about it?