[11.4] Customizing Gnome

Good day all,

I am quite a total newbie and newcomer in the Linux world. Actually it was my first install ever and I chose the OpenSuse 11.4 release. My comp is an old Lenovo R61 with 2gig RAM and I checked Gnome as default desktop manager.
The install went smoothly and everything was OK. But then I started to customise my desktop and install software using mainly Yast2. As a former Snow Leopard user, I wanted it to look’n’feel like OSX so I installed Mac4lin successfully. Now I’ve got some questions that even 2 days googling couldn’t solve it:

  1. I can’t find a way to change the “start bar” icon and replace it with an apple icon. I saw some screenshots of people doing it, but how?
  2. I can’t figure out how to change the bootscreen image (green with a gecko and a progress bar) either. I’d like (of course) to put the OSX boot screen instead. All tools I could find is made for Ubuntu and KDE. Is it impossible to do so under gnome suse?
  3. I tried installing virtualbox 4.0.12_OSE r72916 using Yast and succeeded but when I try to start a virtual machine I get the following error message:
    The VirtualBox Linux kernel driver (vboxdrv) is either not loaded or there is a permission problem with /dev/vboxdrv. Please reinstall the kernel module by executing

‘/etc/init.d/vboxdrv setup’

as root. Users of Ubuntu, Fedora or Mandriva should install the DKMS package first. This package keeps track of Linux kernel changes and recompiles the vboxdrv kernel module if necessary.

I installed and did everything required by the step by step tutorials but still can’t make it work.

Thanks in advance for your help and sorry for my scholar English.