Can't find installation for "overlay-scrollbar"

Description: Ubuntu 14.04 LTS
Release: 14.04

When I try to run the graphical interface of the IDL 7.0, I get the following error messages:

Gtk-Message: Failed to load module "overlay-scrollbar"
Gtk-Message: Failed to load module "unity-gtk-module"

I tried in several ways to install or find these packages without success. I have no idea what to do.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: overlay-scrollbar 0.2.16+r359+14.04.20131129-0ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
Date: Fri May 9 15:13:23 2014
InstallationDate: Installed on 2014-04-17 (21 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
PackageArchitecture: all
SourcePackage: overlay-scrollbar
UpgradeStatus: No upgrade log present (probably fresh install)