netbook-launcher does not display custom application icon

Binary package hint: netbook-launcher

the icon displayed in "favorites" section is different from the custom icon selected through alacarte and correctly showed in the Science section of the menu... see both screenshots.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: netbook-launcher 1:2.1.18-0ubuntu2
ProcVersionSignature: Ubuntu 2.6.32-24.39-generic 2.6.32.15+drm33.5
Uname: Linux 2.6.32-24-generic x86_64
NonfreeKernelModules: wl
Architecture: amd64
Date: Sun Aug 15 19:36:19 2010
DkmsStatus:
 vboxnetflt, 3.2.8, 2.6.32-24-generic, x86_64: installed
 vboxdrv, 3.2.8, 2.6.32-24-generic, x86_64: installed
 bcmwl, 5.60.48.36+bdcom, 2.6.32-23-generic, x86_64: installed
 bcmwl, 5.60.48.36+bdcom, 2.6.32-24-generic, x86_64: installed
 vboxnetadp, 3.2.8, 2.6.32-24-generic, x86_64: installed
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
MachineType: Hewlett-Packard HP Compaq 6735s
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-24-generic root=UUID=27878af5-c2c9-4ca8-975c-5705c31a6d8c ro quiet splash
ProcEnviron:
 LANG=en_US.utf8
 SHELL=/bin/bash
SourcePackage: netbook-launcher
dmi.bios.date: 09/14/2009
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68GPP Ver. F.0E
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 30E4
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 94.20
dmi.chassis.asset.tag: CNU916223Y
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvr68GPPVer.F.0E:bd09/14/2009:svnHewlett-Packard:pnHPCompaq6735s:pvrF.0E:rvnHewlett-Packard:rn30E4:rvrKBCVersion94.20:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP Compaq 6735s
dmi.product.version: F.0E
dmi.sys.vendor: Hewlett-Packard
system:
 distro: Ubuntu
 codename: lucid
 architecture: x86_64
 kernel: 2.6.32-24-generic