'From etoys3.0 of 24 February 2008 [latest update: #2044] on 26 June 2008 at 9:44:32 am'!
"Change Set:		ResetProgressBar-yo
Date:			26 June 2008
Author:			Yoshiki Ohshima

Clear the UniqueInstance of SystemProgressBar.  We might want to do it at every startUp."!

"Postscript:
"
SystemProgressMorph reset.!