erro no apt-get upgrade

[Marcio de Araujo Benedito <china@pbh.gov.br>]

Que erro e este?? Desde ontem que nao consigo fazer o upgrade no woody!

Fetched 1101kB in 39m24s (466B/s)         
Failed to fetch
http://non-us.debian.org/debian-non-US/pool/non-US/main/m/mozilla/mozilla-mailnews_0.9.8-2_i386.deb
MD5Sum mismatch
Failed to fetch
http://non-us.debian.org/debian-non-US/pool/non-US/main/m/mozilla/mozilla-psm_0.9.8-2_i386.deb
MD5Sum mismatch
Failed to fetch
http://non-us.debian.org/debian-non-US/pool/non-US/main/m/mozilla/libnss3_0.9.8-2_i386.deb
MD5Sum mismatch
E: Unable to fetch some archives, maybe run apt-get update or try with
--fix-missing?

[]'
--
Márcio de Araújo Benedito - china@pbh.gov.br
Empresa de Informática e Informação do Município
de Belo Horizonte - Prodabel/SA
GNU/Linux user 186538 - Debian Woody

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--Oliver Goldsmith