Hi David,

I run these line codes

    $ notmuch dump --output=~/out.nm
    $ mv ~/Mail/.notmuch ~/.notmuch.bak
    $ notmuch new
    $ notmuch tag -inbox -unread '*'
    $ notmuch restore --accumulate --input=~/out.nm

from page http://notmuchmail.org/howto/#index6h2

and, after some complains, it get to run very well now!

Thank you very much!

-- 
Laia, ML
http://ppgcf.ufvjm.edu.br/~ppgcf/marcelolaia