have a light fixture about my kitchen sink that has suddenly stopped working. I pulled the fixture and I was getting 0 volts. I replaced the light switch and tested again and was getting 120v. I went ahead and put up a new fixture and it worked for about 30 seconds before flickering several times and then going out. I pulled the fixture and I was only getting about 1v. I replaced the the switch again and now I'm getting erratic readings all well below 120v. I double checked the neutral behind the switch and it has a solid connection. Any help would be appreciated.