  A combination of density functional and dynamical mean-field theory is
applied to the perovskites SrVO$_3$, LaTiO$_3$ and LaVO$_3$. We show that
DFT+DMFT in conjunction with the standard fully localized-limit (FLL)
double-counting predicts that LaTiO$_3$ and LaVO$_3$ are metals even though
experimentally they are correlation-driven ("Mott") insulators. In addition,
the FLL double counting implies a splitting between oxygen $p$ and transition
metal $d$ levels which differs from experiment. Introducing into the theory an
\textit{ad hoc} double counting correction which reproduces the experimentally
measured insulating gap leads also to a $p$-$d$ splitting consistent with
experiment if the on-site interaction $U$ is chosen in a relatively narrow
range ($\sim 6\pm 1$ eV). The results indicate that these early transition
metal oxides will serve as critical test for the formulation of a general
\textit{ab initio} theory of correlated electron metals.
