That happened to me... You can try to delete *lock files under:
> Hello, All!
> I have a question about subj. When i try to start snm, i get the
> following messages:
> # snm &
> Feb 17 16:35:40 rakita NetISAM: EFLOCK: lock owned by host 'rakita'
> pid 417 user 0 inode 312
> Error: cannot load font set '-b&h-lucida-medium-r-*-*-*-140-*-*-*-*-*-*'
> Error: unable to open default font set
> Error: Cannot open connection to window server: :0.0
> Whats wrong? Help me please.