I also have never heard of a cable gaurd breaking? thats a new one on me? The only thing i could think of is it is what adams sead at the 3:00oclock postion and pushed to far out and giving it maby to much stress. But thats about all a cable guard does is push the cables to one side giving clearence for the "arrow or vanes or feathers" to pass. I would take it to a proshop and see what they can find out.[&:]