ferret dash icon problems

Steps to reproduce:

1. Install ferret. (Via Software center, Synaptiy or apt-get.)

2. Problem 1: an icon (a question mark within a gray rectangle) for the new application appears on dash - I guess this is some kind of fallback icon, meaning ferret doesn't have any suitable icon on its own.

3. Problem 2: start ferret from the dash icon. Instead of what should normally happen (dash icon starts blinking, then a small triangle appears left from it), an "invisible" icon (icon-sized empty space) appears bleow ferret's dash icon, which later behaves as the icon of the running apllication.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: ferret 0.6-3ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-26.41-generic-pae 3.2.19
Uname: Linux 3.2.0-26-generic-pae i686
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu11
Architecture: i386
CheckboxSubmission: e665592ec356650b8c1e4f41698ed522
CheckboxSystem: 4ed15c40009aa6f7770f606350a390a2
Date: Sun Jul 22 16:38:09 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta i386 (20120301)
PackageArchitecture: all
SourcePackage: ferret
UpgradeStatus: No upgrade log present (probably fresh install)