I just got myself a Manfrotto 190Xprob. All was well until after a few days, when all 6 of the screw caps (the little black caps that protect the screws at the joints) dropped off. They can't be put back securely and will fall off if I try.
I'm wondering if this is normal, and is it ok if I just leave the screws exposed? Will they rust? Or should I glue the caps back on?