  We investigate the critical behavior of the two-dimensional randomly driven
lattice gas, in which particles are driven along one of the lattice axes by an
infinite external field with randomly changing sign. A finite-size scaling
(FSS) analysis provides novel evidences that this model is not in the same
universality class as the driven lattice gas with a constant drive (DLG),
contrarily to what has been recently reported in the literature. Indeed, the
FSS functions of transverse observables (i.e., related to order-parameter
fluctuations with wave vector perpendicular to the direction of the field)
differ from the mean-field behavior predicted and observed within the DLG
universality class. At variance with the DLG case, FSS is attained on lattices
with fixed aspect ratio and anisotropy exponent equal to 1 and the transverse
Binder cumulant does not vanish at the critical point.
