  We investigate 2-colour QCD with 2 flavours of Wilson fermion at nonzero
temperature T and quark chemical potential mu, with a pion mass of 700 MeV
(m_pi/m_rho=0.8). From temperature scans at fixed mu we find that the critical
temperature for the superfluid to normal transition depends only very weakly on
mu above the onset chemical potential, while the deconfinement crossover
temperature is clearly decreasing with mu. We find indications of a region of
superfluid but deconfined matter at high mu and intermediate T. The static
quark potential determined from the Wilson loop is found to exhibit a 'string
tension' that increases at large mu in the 'deconfined' region. The electric
(longitudinal) gluon propagator in Landau gauge becomes strongly screened with
increasing temperature and chemical potential. The magnetic (transverse) gluon
shows little sensitivity to temperature, and exhibits a mild enhancement at
intermediate mu before becoming suppressed at large mu.
