We consider the parametrised quintic family of Thue equations X(X-2 -
Y-2)(X-2 - a(2)Y(2)) - Y-5 = +/-1 a is an element of Z and prove that
it only has trivial solutions for \a\ greater than or equal to 3.6 x 1
0(19) using a recent estimate for linear forms in three logarithms of
algebraic numbers by P. Voutier. (C) 1998 Academic Press.