It is shown that a discontinuous contractive mapping T on a a-complete vector lattice must be (0)-continuous at a fixed point. The same is true for pair of maps. There are a number of theorems of the form, if the sequence {Xn} of Mann iterates of a certain type (0)-converges to a point p, then p is a fixed point of the map T. Further, if (0)-lim Xn = p, then p is a fixed point of T if and only if T is (0)-continuous at p.