AisleRiot - "Install additional software packages" broken

[Lucio M Nicolosi]

Binary package hint: gnome-games

AisleRiot 2.32.1
Description: Ubuntu 11.04
Release: 11.04 updated to Apr 24, 2011
Ubuntu Classic

Opened Aisleriot. Went to View / Card Style / Install Card Themes. Window "Install additional software packages" opens but button "Install" appears greyed, no install available.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: aisleriot 1:2.32.1-0ubuntu5
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Sun Apr 24 22:47:53 2011
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110423)
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=pt_BR.UTF-8
 LC_MESSAGES=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: gnome-games
UpgradeStatus: No upgrade log present (probably fresh install)

[Zmogas (zmogas)]

Install the package gnome-games-extra-data to get extra card themes.

But still dialog is strange: install disabled, if you close it with close button, not cancel, then authorisation request pops-up, but still fails to install extra card themes.