Having trouble, 1 of my MV lamps goes out intermittently (turns off, waits the 2min then comes back up), they are remotely ballasted (inside gutted PC power supp. cases and cooled via adapted pc fans) my amp draw hasn't changed, maybe my a/c in the house? (it is on a diff circuit.) What else could it be? its not the plugs, or wiring distances, even switched outlet strips, can't figure it out. HELP