System.gui.transform not recognizing parameter coordSpace

Is there a bug with system.gui.transform because I cannot get it to use COORD_SCREEN ?
It always seems to treat my coordinates as relative to the deisgn time coordinates (system.gui.COORD_DESIGNER).

	int_CoordSpace = system.gui.COORD_SCREEN
#	int_CoordSpace = system.gui.COORD_DESIGNER

	system.gui.transform(ezchart, 10, 10, 100, 100, coordSpace=int_CoordSpace)