diff --git a/Platform/Apple/virtual/src/font/fontEngine.s b/Platform/Apple/virtual/src/font/fontEngine.s
index ca2b4db5..0c329f5b 100644
--- a/Platform/Apple/virtual/src/font/fontEngine.s
+++ b/Platform/Apple/virtual/src/font/fontEngine.s
@@ -554,6 +554,9 @@ SetWnd	LDA evalStkL+SW_TOP,X	;get top coord
 	JSR GetOfst
 	LDA HgrHrz
 	STA LfMrgn		;that's the left margin for scrolling
+	LDA #0
+	STA TtlScrl		;clear centering variables
+	STA WrdWdth
 	RTS
 
 ;Routine: Scroll screen up 1 character line