Hi, I recently purchased the Phantom 2 with h3-3d gimbal. I installed the gimbal (correctly I believe), and then I attached my Gopro 4 and powered it on, it went through that quick cycle where the camera points directly straight ahead, then also straight down. However, once it's done cycling through, the camera points at a downward angle (probably 45 degrees), and when I try to adjust the camera angle using the controller, the camera cannot be adjusted to point straight ahead, or straight down. And when I let go of the adjustment toggle, the camera angle will move. I don't have any camera add-ons. Any thoughts on how to fix this? Thanks