  We study the static and dynamic behavior of charge ordering within a d-wave
pair pseudogap (pg) scenario. This is addressed using a density-density
correlation function derived from the standard pg self energy, $\Sigma$ and
compatible with the longitudinal and transverse sum rules. The broadening
factor $\gamma$ in $\Sigma$ reflects the breaking of pairs into constituent
fermions. We apply this form for $\Sigma$ (derived elsewhere for high fields)
to demonstrate the existence of quantum oscillations in a non-Fermi liquid pg
state. Our conclusion is that the pseudogap-induced pairbreaking, via $\gamma$,
allows the underlying fermiology to be revealed; in YBCO, finite $\omega$ and
$\gamma$ enable antinodal fluctuations, despite the competition with a d-wave
gap in the static and superconducting limits.
