  Multiple (real) solutions of the CC equations (corresponding to the CCD, ACP
and ACPQ methods) are studied for the PPP model of [10]annulene, C_{10}H_{10}.
The long-range electrostatic interactions are represented either by the
Mataga--Nishimoto potential, or Pople's R^{-1} potential. The multiple
solutions are obtained in a quasi-random manner, by generating a pool of
starting amplitudes and applying a standard CC iterative procedure combined
with Pulay's DIIS method. Several unexpected features of these solutions are
uncovered, including the switching between two CCD solutions when moving
between the weakly and strongly correlated regime of the PPP model with Pople's
potential.
