Hi ToHo,
I'm not sure of the theory as to why, but yes, just the other day I had a service call for a flourescent fixture that was "flickering and taking a long time to come on". I changed the bulb, same problem. Started to change the fixture but noticed the ground was loose. I scraped the paint under the ground screw and torqued the screw down tight on the ground wire and the problem went away. Again, I'm not sure of the theory behind this. Perhaps one of the many very sharp folks on this forum can educate us on that [Linked Image]