wich variable

For some drawings "Print - Advanced - Origin of Print Area - Center on Page Instead" works fine. For other drawings, it can not be used, because Icad first erases the X- and Y-values, and next complains that they are not set " "" is not a valid Xvalue, please...."etc. It seams to me that this behaviour must depend on the setting of a drawing variable, because if one "inserts" a "bad" drawing in a "good" one, the "bad" drawing turns "good" (I mean, the "center on page instead" feature starts to work). Does anybody know wich variable this is ? Thanks for any help.Marcel L.