  The passage of stars through the beam of a lensed quasar can induce violent
fluctuations in its apparent brightness. The fluctuations observed in the
Huchra lens, (2237+0305), are taken to be the first evidence of this
``microlensing'' occurring in lensing systems. Subsequent microlensing events
observed in this system and in other gravitational lenses illustrate that
microlensing should be a common phenomenon in lensed quasars. The statistical
properties of the component light curves will be defined to a large extent by
the mass distribution of the microlensing objects and the internal light
distribution of the lensed quasar. We present statistics of a large sample of
hypothetical microlensing light curves, for a number of lensing situations,
generated using an efficient numerical technique. These artificial light curves
show that the amplification probability distributions are independent of the
mass function of the compact lensing objects. The amplification probability
distributions for the Huchra lens system are presented.
