I had the same issue with Tone's HIDs and it really was never resolved. Tone is a great guy and would definitely buy from him again, but the HID thing kinda didn't work out. His kit was a little more complex than the HID kit I ended up putting in my VX and my brother's Mustang and my sister's Xterra. Tone's kit kept on going out on one side or the other, my problem seemed to be the cheap relay (black box looking thing). Try tapping or hitting the black box (relay) on the side that is not working next time. I sent my kit back to Tone for him to look at it and have not heard anything about it since, and I don't really mind, he was great to work with through the whole thing, but I decided on some HIDs from XenonRider.com and his prices are amazing and I have never had any problems and his kits are far less complicated (less to break). Once again absolutely nothing negative about Tone from me here, but the HIDs I got from him never worked out either and it sounds like I had the same problem you did. I gave up and bought different ones after the fifth try at fixing the problem for more than a week.