I can't access my Ubuntu partition while on Debian!

[Fixman]

If I try to access my Ubuntu partition from Debian it tells me:

Permission Denied

Any idea of how to fix this? Please, its seriuosly important!

[madamore]

chequeaste la configuración en: /etc/fstab

a ver si esta página ayuda:
http://tuquito.org.ar/tukipedia/index.php?title=Entendiendo_Fstab

[Fixman]

Thanks! Thanks! You seriously saved my life!