diff -u -d -r -P abi.orig/src/wp/ap/xp/ap_Dialog_Options.cpp abi/src/wp/ap/xp/ap_Dialog_Options.cpp
--- abi.orig/src/wp/ap/xp/ap_Dialog_Options.cpp	Wed Dec  8 14:15:33 1999
+++ abi/src/wp/ap/xp/ap_Dialog_Options.cpp	Tue Feb 29 16:19:22 2000
@@ -36,6 +36,7 @@
 #include "ap_Dialog_Options.h"
 #include "ap_Prefs_SchemeIds.h"
 #include "ap_Strings.h"
+#include "ap_FrameData.h"
 
 AP_Dialog_Options::AP_Dialog_Options(XAP_DialogFactory * pDlgFactory, XAP_Dialog_Id id)
 	: XAP_Dialog_NonPersistent(pDlgFactory,id)
@@ -67,6 +68,9 @@
 	XAP_Prefs *pPrefs = m_pApp->getPrefs();
 	UT_ASSERT(pPrefs);
 
+	AP_FrameData *pFrameData = (AP_FrameData *)m_pFrame->getFrameData();
+	UT_ASSERT(pFrameData);
+
 	XAP_PrefsScheme *pPrefsScheme = pPrefs->getCurrentScheme();
 	UT_ASSERT(pPrefs->getCurrentScheme());
 
@@ -105,8 +109,18 @@
 	Save_Pref_Bool( pPrefsScheme, AP_PREF_KEY_SpellCheckNumbers, _gatherSpellNumbers() );
 	Save_Pref_Bool( pPrefsScheme, AP_PREF_KEY_SpellCheckInternet, _gatherSpellInternet() );
 
-	Save_Pref_Bool( pPrefsScheme, AP_PREF_KEY_RulerVisible, _gatherViewShowRuler() );
 	Save_Pref_Bool( pPrefsScheme, AP_PREF_KEY_CursorBlink, _gatherViewCursorBlink() );
+	Save_Pref_Bool( pPrefsScheme, AP_PREF_KEY_RulerVisible, _gatherViewShowRuler() );
+
+	// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
+	// If we changed whether the ruler is to be visible
+	// or hidden, then update the current window:
+	// (If we didn't change anything, leave it alone)
+	if ( _gatherViewShowRuler() != pFrameData->m_bShowRuler )
+	{
+		pFrameData->m_bShowRuler = _gatherViewShowRuler() ;
+		m_pFrame->toggleRuler( _gatherViewShowRuler() );
+	}
 
 	// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
 	// save ruler units value