  Time delay measurements have recently been reported for the lensed quasar PG
1115+080. These measurements can be used to derive Ho, but only if we can
constrain the lensing potential. We have applied a recently developed
deconvolution technique to analyse sub-arcsecond I band images of PG 1115+080,
obtained at the Nordic Optical Telescope (NOT) and the Canada France Hawaii
Telescope (CFHT). The high performance of the deconvolution code allows us to
derive precise positions and magnitudes for the four lensed images of the
quasar, as well as for the lensing galaxy. The new measurement of the galaxy
position improves its precision by a factor of 3 and thus strengthens the
constraints on the lensing potential. With the new data, a range of models
incorporating some of the plausible systematic uncertainties yields Ho = 53
(+10/-7) km/s/mpc.
