Update Manager Error: 403 Forbidden

[Mark Nichols]

Today, while running the Update Manager I got the following errors for
some samba related updates:

W: Failed to fetch
http://security.ubuntu.com/ubuntu/pool/main/s/samba/smbfs_3.0.26a-1ubuntu2.1_i386.deb
  403 Forbidden

W: Failed to fetch
http://security.ubuntu.com/ubuntu/pool/main/s/samba/smbclient_3.0.26a-1ubuntu2.1_i386.deb
  403 Forbidden

W: Failed to fetch
http://security.ubuntu.com/ubuntu/pool/main/s/samba/samba-common_3.0.26a-1ubuntu2.1_i386.deb
  403 Forbidden

W: Failed to fetch
http://security.ubuntu.com/ubuntu/pool/main/s/samba/libsmbclient_3.0.26a-1ubuntu2.1_i386.deb
  403 Forbidden

Does anyone have any ideas how I go about resolving this?

Thanks,
Mark
-- 
I don't believe I understand all I know about this.