I noticed on my trip back from Canada that my low beam would cut off. I switched to high beam and irritated few drivers during the wee hours on the road, but I had to see, and the high beam stayed on. I thought it was the low beam ballast and ignitor, so I ordered a new set, and switched the ballast from the high to the low so I could continue to ride, however tonight the high would cut off every minute or so on the ride home. If I switched from high to low and back on again it would be fine for another few minutes. All connections were checked and seemed in order. Any ideas?????