  We present broadband multi-wavelength observations of GRB 080310 at redshift
z = 2.43. This burst was bright and long-lived, and unusual in having extensive
optical and near IR follow-up during the prompt phase. Using these data we
attempt to simultaneously model the gamma-ray, X-ray, optical and IR emission
using a series of prompt pulses and an afterglow component. Initial attempts to
extrapolate the high energy model directly to lower energies for each pulse
reveal that a spectral break is required between the optical regime and 0.3 keV
to avoid over predicting the optical flux. We demonstrate that afterglow
emission alone is insufficient to describe all morphology seen in the optical
and IR data. Allowing the prompt component to dominate the early-time optical
and IR and permitting each pulse to have an independent low energy spectral
indices we produce an alternative scenario which better describes the optical
light curve. This, however, does not describe the spectral shape of GRB 080310
at early times. The fit statistics for the prompt and afterglow dominated
models are nearly identical making it difficult to favour either. However one
enduring result is that both models require a low energy spectral index
consistent with self absorption for at least some of the pulses identified in
the high energy emission model.
