  We present results from a 54.7 live-day shielded run of the DRIFT-IId
detector, the world's most sensitive, directional, dark matter detector.
Several improvements were made relative to our previous work including a lower
threshold for detection, a more robust analysis and a tenfold improvement in
our gamma rejection factor. After analysis, no events remain in our fiducial
region leading to an exclusion curve for spin-dependent WIMP-proton
interactions which reaches 0.28 pb at 100 GeV/c^2 a fourfold improvement on our
previous work. We also present results from a 45.4 live-day unshielded run of
the DRIFT-IId detector during which 14 nuclear recoil-like events were
observed. We demonstrate that the observed nuclear recoil rate of 0.31+/-0.08
events per day is consistent with detection of ambient, fast neutrons emanating
from the walls of the Boulby Underground Science Facility.
