Do you have any tips - or know of some sort of repair kit - for repairing a KLF-30's rattling cabinet? The significant rattle is about 5 inches from the back panel's top on the right-hand seam. I can place a finger (with pressure) on the exact spot of the outside of the cabinet (versus the back panel) and it stops completely. Without the pressure the cabinet's rattle is absolutely HUGE! HELP!