I've installed Ubuntu 13.10 64 bit and I followed the instructions at:
 
http://www.qnx.com/developers/articles/inst_5847_6.html to load some extra libraries.
When I start with run-qde.sh I get the following messages:

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

I haven't seen any problem yet.  Is this a problem?