--- loncom/homework/inputtags.pm	2007/03/01 02:30:03	1.217
+++ loncom/homework/inputtags.pm	2007/03/13 00:21:28	1.218
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # input  definitons
 #
-# $Id: inputtags.pm,v 1.217 2007/03/01 02:30:03 albertel Exp $
+# $Id: inputtags.pm,v 1.218 2007/03/13 00:21:28 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -1095,6 +1095,9 @@ sub gradestatus {
 	if ( $status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER') {
 	    $showbutton = 0;
 	}
+	if ( $status eq 'SHOW_ANSWER') {
+	    undef($previousmsg);
+	}
 	if ( $showbutton ) { 
 	    if ($target ne 'tex') {
 		$button = '<input onsubmit="javascript:setSubmittedPart(\''.$id.'\')" type="submit" name="submit_'.$id.'" value="'.&mt('Submit Answer').'" />';