diff -u cacti-0.8.7b/host.php cacti-patched/host.php
--- cacti-0.8.7b/host.php	2008-02-11 19:57:48.000000000 -0500
+++ cacti-patched/host.php	2008-09-29 10:24:11.000000000 -0400
@@ -878,6 +878,8 @@
 	function setSNMP(snmp_type) {
 		switch(snmp_type) {
 		case "None":
+			document.getElementById('snmp_username').setAttribute('autocomplete', 'off');
+			document.getElementById('snmp_password').setAttribute('autocomplete', 'off');
 			document.getElementById('row_snmp_username').style.display        = "none";
 			document.getElementById('row_snmp_password').style.display        = "none";
 			document.getElementById('row_snmp_community').style.display       = "none";
@@ -891,6 +893,8 @@
 
 			break;
 		case "v1v2":
+			document.getElementById('snmp_username').setAttribute('autocomplete', 'off');
+			document.getElementById('snmp_password').setAttribute('autocomplete', 'off');
 			document.getElementById('row_snmp_username').style.display        = "none";
 			document.getElementById('row_snmp_password').style.display        = "none";
 			document.getElementById('row_snmp_community').style.display       = "";