Installing Mate

["Ethan Rosenberg, PhD" <erosenberg@hygeiabiomedical.com>]

Dear List -

Thanks for your suggestions.  I followed them, and it solved some 
errors, but some remain...

root@meow:/etc/apt# apt-get update
<snip>
Get:4 http://repo.mate-desktop.org wheezy Release.gpg [836 B]
Hit http://repo.mate-desktop.org wheezy Release
Ign http://repo.mate-desktop.org wheezy Release
Ign http://repo.mate-desktop.org wheezy/main i386 Packages/DiffIndex
Hit http://repo.mate-desktop.org wheezy/main i386 Packages
Ign http://repo.mate-desktop.org wheezy/main Translation-en_US
Ign http://repo.mate-desktop.org wheezy/main Translation-en
Hit http://packages.mate-desktop.org wheezy Release
Ign http://packages.mate-desktop.org wheezy Release
Ign http://packages.mate-desktop.org wheezy/main i386 Packages/DiffIndex
Hit http://packages.mate-desktop.org wheezy Release
Ign http://packages.mate-desktop.org wheezy Release
Ign http://packages.mate-desktop.org wheezy/main i386 Packages/DiffIndex
Hit http://packages.mate-desktop.org wheezy/main i386 Packages
Fetched 141 kB in 6s (20.6 kB/s)
W: GPG error: http://repo.mate-desktop.org wheezy Release: The
following signatures couldn't be verified because the public key is
not available: NO_PUBKEY 68980A0EA10B4DE8
W: GPG error: http://packages.mate-desktop.org wheezy Release: The
following signatures couldn't be verified because the public key is
not available: NO_PUBKEY 68980A0EA10B4DE8

<snip>
root@meow:/etc/apt# apt-get install mate-archive-keyring
Reading package lists... Error!
E: Encountered a section with no Package: header
E: Problem with MergeList
/var/lib/apt/lists/ftp.deban.org_debian_dists_wheezy-updates_contrib_i18n_Translation-en
E: The package lists or status file could not be parsed or opened.

TIA

Ethan