I noticed that one of my kitchen countertop outlets was not working. I checked all the other outlets in the area and noticed two outlets in the adjacent room were also not working. I also checked every other outlet, switch & light in the house and all were fine. When I tested each of the three non-working ones, the countertop one indicated "open neutral" and the two outlets in the other room indicated "open ground" with the light indicator being very weak. I removed the cover plate of the countertop outlet to see if wires had come lose. The wires were firmly attached, but the bracket on the receptacle had almost completely separated from the face of the receptacle. I replaced the receptacle with a new one. When I tested it, it read "open hot". I double checked the connections and the proper placement of hot & neutral. The two other outlets still read "open ground" with very weak light indicator. Any ideas? Thanks.