We're in the process of buying a house and was informed by the appraiser that the kitchen and bathroom will need GFCI outlets. This has us a little worried because the house was built in 1964, and we're not sure if the wiring is grounded. (We neglected to look at the other outlets the times we were in there. We're still kicking ourselves about it) If it's not, what do we have to do? If it is, is it as simple as just replacing the outlets?