Installed 11.10 fresh but with a previously used /home/bob directory mounted.
unity does not start when i log in as 'bob', but does work as a guest, as well as for a new users account i made, 'bob2'.
if i start in 2d then run unity from command line, it works (this is my current work-around).
things i have tried:
removed all settings directories (rm -rf .gconf .gnome2 etc)
installed ccsm and un/re-enabled unity, and removed conflicts (there were some)
none seem to solve the problem. any ideas?