Quote Originally Posted by Kerik
Bill, if you haven't left for Homely Depot yet, you can try covering your white masonite with aluminum foil. That might do the trick. If your foil has a shiny and matte side, apply it with the matte side facing the bulbs.

Very good idea. Another thing that might help would be to connect all of the tubes together with a piece of bare electrical wire. Just run it around each wire so that they all are in touch with the wire.

I am going to assume that you also grounded all of the lights together with the green ground wire, and that you have this going to the outlet? If not, I would highly recommend you do this, both for more consistent start-up and for safety reasons.