FC6 Extras yumex

[antonio montagnani]

When I am trying to update my system by Yumex I receive only for
extras repo many of these messages and then no mirrors to try.

Errore ricevendo
http://ftp.nluug.nl/ftp/pub/os/Linux/distr/fedora/extras/6/i386/repodata/comps.xml:
  --> [Errno -1] Metadata file does not match checksum
Trying other mirror.

What is happening (I updated two other systems of mine a while ago..)
-- 
Antonio Montagnani
Skype : antoniomontag