  PG0948+534 is currently one of the hottest DA white dwarf stars, and is also
one of the most mysterious. Attempts to model the sharp, deep absorption
features of this star have been unsuccessful. In these proceedings we describe
our analysis of PG0948+534. We perform a line survey of the UV spectrum of
PG0948+534, making detections of 300+ absorption features, and identifying four
distinct velocity regimes. We find evidence of circumstellar absorption in the
profiles of C {\sc iv} and Si {\sc iv}. Using non-local thermodynamic
equilibrium model atmospheres, we are able to correctly model the absorption
features of the star, providing abundance measurements for C, N, O, and Si for
PG0948+534 for the first time. We also revise the effective temperature and
gravity for this star using models including these new abundances.
