Index: mail/base/content/msgHdrViewOverlay.js
===================================================================
RCS file: /cvsroot/mozilla/mail/base/content/msgHdrViewOverlay.js,v
retrieving revision 1.56.2.4.2.1
diff -u -r1.56.2.4.2.1 msgHdrViewOverlay.js
--- mail/base/content/msgHdrViewOverlay.js	6 Jan 2006 00:55:18 -0000	1.56.2.4.2.1
+++ mail/base/content/msgHdrViewOverlay.js	4 Mar 2006 20:25:42 -0000
@@ -128,7 +128,7 @@
 var gExpandedHeaderList = [ {name:"subject"}, 
                             {name:"from", outputFunction:OutputEmailAddresses},
                             {name:"sender", outputFunction:OutputEmailAddresses},
-                            {name:"reply-to", outputFunction:OutputEmailAddresses},
+                            {name:"reply-to", useToggle:true, outputFunction:OutputEmailAddresses},
                             {name:"date"},
                             {name:"to", useToggle:true, outputFunction:OutputEmailAddresses},
                             {name:"cc", useToggle:true, outputFunction:OutputEmailAddresses},
Index: mail/base/content/msgHdrViewOverlay.xul
===================================================================
RCS file: /cvsroot/mozilla/mail/base/content/msgHdrViewOverlay.xul,v
retrieving revision 1.14
diff -u -r1.14 msgHdrViewOverlay.xul
--- mail/base/content/msgHdrViewOverlay.xul	2 Aug 2005 22:31:24 -0000	1.14
+++ mail/base/content/msgHdrViewOverlay.xul	4 Mar 2006 20:26:37 -0000
@@ -147,7 +147,7 @@
         <mail-emailheaderfield id="expandedfromBox" label="&fromField.label;" collapsed="true"/>
         <mail-emailheaderfield id="expandedsenderBox" label="&senderField.label;" collapsed="true"/>
         <mail-headerfield id="expandedorganizationBox" label="&organizationField.label;" collapsed="true"/>
-        <mail-emailheaderfield id="expandedreply-toBox" label="&replyToField.label;" collapsed="true"/>
+        <mail-multi-emailHeaderField id="expandedreply-toBox" label="&replyToField.label;" collapsed="true"/>
 
         <mail-headerfield keywordrelated="true" id="expandeddateBox" label="&dateField.label;" collapsed="true"/>