hello all, new member here. i have a 2004 fleetwood gearbox 260fs and on my recent trip the rear cargo door separated from trailer body. have seen several threads on this issue and the fix. upon inspection of my trailer, the problem is that the side screws on the left side came lose or fell off. the other part of my problem is that the top cargo door frame rail does not seem to have any fastners installed in it????? any one else run into this??did they forget to secure the top rail???