I was attempting to repartition Zorin but gparted blew up and scribbled the partition table.  So I restored from backups and tried again, same thing.  Something seems to be hurt with the partition table even on backups so I am doing a fresh install.  If there is software on Zorin that you use please e-mail nanook@eskimo.com and I will prioritize getting that re-installed.  No user data will be lost.