A Search for Short Time-Scale Optical Variability in the GRB 030329 Afterglow

We present a densely sampled R-band light curve of the optical afterglow of GRB 030329 obtained during the period 15.5-23 hours after the burst. This dataset allows us to search for short time-scale fluctuations that must be present at some level due to inhomogeneities in the circumburst medium and/or if the afterglow is intrinsically variable.