diff --git a/chipsim.js b/chipsim.js
index 59f630c..9790b2f 100644
--- a/chipsim.js
+++ b/chipsim.js
@@ -143,7 +143,15 @@ function saveString(name, str){
 
 function allNodes(){
 	var res = new Array();
-	for(var i in nodes) if((i!=npwr)&&(i!=ngnd)) res.push(i);
+	var ii = 0;
+	for(var i in nodes) {
+		// Don't feed numeric strings to recalcNodeList(). Numeric
+		// strings can cause a (data dependent) duplicate node number
+		// hiccup when accumulating a node group's list, ie:
+		// group => [ "49", 483, 49 ]
+		ii = Number( i );
+		if((ii!=npwr)&&(ii!=ngnd)) res.push(ii);
+	}
 	return res;
 }
 
diff --git a/expert-allinone.js b/expert-allinone.js
index 7e58f7b..75f72ce 100644
--- a/expert-allinone.js
+++ b/expert-allinone.js
@@ -13569,7 +13569,15 @@ function saveString(name, str){
 
 function allNodes(){
 	var res = new Array();
-	for(var i in nodes) if((i!=npwr)&&(i!=ngnd)) res.push(i);
+	var ii = 0;
+	for(var i in nodes) {
+		// Don't feed numeric strings to recalcNodeList(). Numeric
+		// strings can cause a (data dependent) duplicate node number
+		// hiccup when accumulating a node group's list, ie:
+		// group => [ "49", 483, 49 ]
+		ii = Number( i );
+		if((ii!=npwr)&&(ii!=ngnd)) res.push(ii);
+	}
 	return res;
 }
 
@@ -14407,7 +14415,7 @@ var dis6502={
 0x68:"PLA",
 0x69:"ADC #",
 0x6A:"ROR ",
-0x6C:"JMP zp",
+0x6C:"JMP (Abs)",
 0x6D:"ADC Abs",
 0x6E:"ROR Abs",
 0x70:"BVS ",
@@ -14855,4 +14863,4 @@ jQuery.cookie = function(name, value, options) {
 	});
 };
 
-})(jQuery);
\ No newline at end of file
+})(jQuery);
diff --git a/macros.js b/macros.js
index 3d91e95..e71b8cb 100644
--- a/macros.js
+++ b/macros.js
@@ -699,7 +699,7 @@ var disassembly={
 0x68:"PLA",
 0x69:"ADC #",
 0x6A:"ROR ",
-0x6C:"JMP zp",
+0x6C:"JMP (Abs)",
 0x6D:"ADC Abs",
 0x6E:"ROR Abs",
 0x70:"BVS ",