Unable to change 'theme' for Ailseriot solitaire

[Mal Ellis]

I do not like the current theme for Ailseriot Solitaire and wish to change it but when I get to the dropdown box to install the 'Install' button is greyed out . It does not have anything in that dropdown box to install . I am running Ubuntu 11.04 on a Pentium 4 duo core with 1Gb ram

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: aisleriot 1:2.32.1-0ubuntu5
ProcVersionSignature: Ubuntu 2.6.38-10.46-generic 2.6.38.7
Uname: Linux 2.6.38-10-generic i686
NonfreeKernelModules: nvidia
Architecture: i386
Date: Wed Aug 10 16:54:22 2011
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: gnome-games
UpgradeStatus: No upgrade log present (probably fresh install)