Hi guys, I'm having a baffling electrical problemcan you help? I recently upgraded our home's light switches from toggles to rockers. A few days later our front porch light flickered a bit when I turned it on. The switch connections looked fine, so I figured the (CFL) bulb might be getting ready to burn out. The next day, the light didn't work. A new bulb didn't help. I thought it might be the new switch, but when I removed the light fixture and tested the leads, they had power. I reconnected the fixture, making sure the wires were securely in their twist-on connectors. No light. I tested the new bulb in another fixture. So it must be the fixture itself, I thought. But when I connected it to an outlet, it worked. What could I possibly be overlooking? I should mention that our house has aluminum wiring. I've been careful to apply anti-oxidant paste to all connections, and everything's worked fine till nowincluding this fixture, which I installed several years ago. Thanks for your suggestions!