%0 Journal Article %T A D-moduli problem? %A Mary K. Gaillard %A Joel Giedt %J Physics %D 2000 %I arXiv %R 10.1016/S0370-2693(00)00336-1 %X We point out a generic problem in string-inspired supergravity models with an anomalous $U(1)_X$. A large number of matter multiplets charged under $U(1)_X$ remain massless above the supersymmetry-breaking scale because of degeneracy of vacua solving the D-flatness conditions. A toy model is analyzed as an illustration of the mechanism; we find the surprising result that many scalars remain massless after supersymmetry-breaking in a hidden sector. %U http://arxiv.org/abs/hep-ph/0001219v1