ppa software not listed

[koanhead]

After adding a PPA, software-center does not list the packages contained in the PPA. The PPA shows in "Software Sources"; the packages show in apt-cache search. Even after apt-get update, the packages are not listed in Software Center.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: software-center 5.2.9
ProcVersionSignature: Ubuntu 3.2.0-55.85-generic 3.2.51
Uname: Linux 3.2.0-55-generic i686
ApportVersion: 2.0.1-0ubuntu17.6
Architecture: i386
Date: Fri Nov 1 09:12:50 2013
InstallationMedia: Xubuntu 12.04.2 LTS "Precise Pangolin" - Release i386 (20130213)
MarkForUpload: True
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_CA:en
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_CA.UTF-8
 SHELL=/bin/bash
SourcePackage: software-center
UpgradeStatus: No upgrade log present (probably fresh install)