2012 Heartland Landmark San Antonio

At about 3am this morning I woke up to a sound kind of like dripping water but it wasn't a constant. It sounded like drip,drip drip then it would go faster then slow down, then stop. This lasted about 30 minutes then quit. Then all of a sudden a loud snapping sound, I thought maybe a mouse trap tripped or a bird flew into the window. But when daylight came around I walked outside and noticed the bedroom slide cable was sagging pretty good when it has always been tight. Now I haven't looked under the bed yet but does anyone have any ideas on how to repair this.