get the text area to show up on Linux

and add a little text to the default message, to let us know it is working
1999-04-02 00:49:33 +00:00 · 1999-04-02 00:49:33 +00:00 · d91595560b
--- a/mailnews/ui/compose/resources/Makefile.in
+++ b/mailnews/ui/compose/resources/Makefile.in
@ -30,7 +30,7 @@ SAMPLES_DIR = $(DIST)/bin/res/mailnews/compose

 EXPORT_RESOURCE_SAMPLES = \
 	./msgcompose.xul \
-	./msgcomposeBody.html \
+	./msgcomposebody.html \
 	./send.gif \
 	./quote.gif \
 	./address.gif \
--- a/mailnews/ui/compose/resources/msgcomposebody.html
+++ b/mailnews/ui/compose/resources/msgcomposebody.html
@ -6,7 +6,8 @@

 <body bgcolor="#FFFFFF" text="#000000">

-<br>
+--<br>
+This message was sent by Messenger 5.0<br>

 </body>
 </html>