There is an updated modified-hildon-desktop package (version 3.2) in my repository. Make sure my repository is enabled, and try running (as root) apt-get update apt-get install modified-hildon-desktop (and post the output if it does not work). Note that you also need to install an enhanced hildon-home package for more than 4 views. See here: http://talk.maemo.org/showthread.php?t=64336