Bug 315373 Help -> Release notes greyed out/

r=mvl

calendar/sunbird/app/brand.dtd.in

@@ -1,7 +0,0 @@
-<!ENTITY  lang.version          "1.7a">
-<!ENTITY  brandShortName        "Sunbird">
-<!ENTITY  brandFullName         "Mozilla Sunbird">
-#expand <!ENTITY  version               "__APP_VERSION__">
-<!ENTITY  vendorShortName       "Mozilla">
-
-<!ENTITY  releaseURL            "http://www.mozilla.org/projects/calendar">

calendar/sunbird/base/content/calendar-menubar.inc

@@ -414,8 +414,7 @@
                      disabled="true"/>
            <menuitem accesskey="&releaseCmd.accesskey;"
                      label="&releaseCmd.label;"
-                     oncommand="openTopWin('&releaseURL;');"
-                     disabled="true"/>
+                     oncommand="launchBrowser('&releaseURL;');" />
            <menuseparator id="menu_HelpAboutSeparator"/>
            <menuitem id="aboutName"
                      label="&aboutCmd.label;"