my sunroof seems to be loose. it will pop up slightly in the front mostly if i have the windows closed. the sunroof does work in all positions. i can push it up with my hand and it will not work right with it up. i push it back down and it works again. we are only talking about a half an inch. is there an adjustment for this. it seems to me that there is a loose or missing screw. and also looking down thru the roof with the sun roof open i can see the sliver tracks and it seems to be missing screws on the tracks. there are just holes every few inches on both sides.