This update fixes a small bug whereby if the Rig On/Off switch is used on any of the characters with a Head Float control, the head space controller will no longer track with the character after the rig is turned back on.
Download the fixed version here...
www.rebelhill.net/RHiggit/Pro/DL/RigOI15411.zip(you will need you original user/pass)
Simply replace your previous version of the script with this one, running it on any rigs that have suffered the bug will also fix them.
If you received RHiggit Pro after 15/4/2011, you already have this fix included.