I replaced one burnt out Philips 9012 bulb with another Philips 9012. Driving around, I noticed it was pointing higher and creating glare off street signs. I parked against a flat wall and the new bulb was indeed aimed higher, causing a scattered pattern. I made sure it was seated correctly and aimed it down to match the other side. With the old bulbs, the aim was perfect. I've never had to re-aim after changing a bulb before. Have you guys encountered such a thing?