"Why does the air conditioner vent in the kitchen of my 1853 square foot home drip a few drops of water now and then?"

So many times I have seen installations where the installers did not insulate the metal fittings in the attic, when you have cold air in the duct and hot attic air on the outside of the pipe you may get sweating. The metal box in the wall or ceiling may not be insulated, to fix this just wrap some fibreglass insulation around this. You can purchase this wrap at Home Depot or Lowe's. Good luck, Mike