Amusingly, as I settled in this morning to work out what was actually causing this problem, everything now works.
Between the failing and succeeding, there have been: ubuntu updates reboot logging in and out with Gnome Classic & Unity before back to Gnome Fingers crossed it stays working. Cheers, Nick -- Nick Phillips / nick.phill...@otago.ac.nz / 03 479 4195 # These statements are mine, not those of the University of Otago
