  We prove that there is an infinite sequence of pairs of plane cuspidal curves
$C_{m,1}$ and $C_{m,2}$, such that the pairs $(\Bbb CP^2, C_{m,1})$ and $(\Bbb
CP^2, C_{m,2})$ are diffeomorphic, but $C_{m,1}$ and $C_{m,2}$ have
non-equivalent braid monodromy factorizations. These curves give rise to the
negative solutions of "Dif=Def" and "Dif=Iso" problems for plane irreducible
cuspidal curves. In our examples, $C_{m,1}$ and $C_{m,2}$ are complex
conjugated.
