diff --git a/assets/disk0/tvdos/bin/color.js b/assets/disk0/tvdos/bin/color.js
index 766da6c..61ee144 100644
--- a/assets/disk0/tvdos/bin/color.js
+++ b/assets/disk0/tvdos/bin/color.js
@@ -39,5 +39,6 @@ if (exec_args[1]) {
     serial.println(fo)
 
     graphics.setBackground(ba[0], ba[1], ba[2])
+    _G.shell.usrcfg.textCol = fo
     con.color_pair(fo, 255)
 }
\ No newline at end of file
diff --git a/assets/disk0/tvdos/bin/command.js b/assets/disk0/tvdos/bin/command.js
index 359cffc..e47e726 100644
--- a/assets/disk0/tvdos/bin/command.js
+++ b/assets/disk0/tvdos/bin/command.js
@@ -108,6 +108,7 @@ function trimStartRevSlash(s) {
 }
 
 let shell = {};
+shell.usrcfg = {textCol: 254}
 shell.replaceVarCall = function(value) {
 // syntax:
 // line = literal [varcall] [literal] ;
@@ -306,12 +307,8 @@ shell.coreutils = {
         graphics.clearPixels2(240);
     },
     cp: function(args) {
-        if (args[2] === undefined) {
-            printerrln("Syntax error")
-            return
-        }
-        else if (args[1] === undefined) {
-            printerrln(`Usage: ${args[0].toUpperCase()} SOURCE DEST`)
+        if (args[2] === undefined || args[1] === undefined) {
+            printerrln(`Usage: ${args[0].toUpperCase()} source_file destination_file`)
             return
         }
         let path = shell.resolvePathInput(args[1])
@@ -367,7 +364,7 @@ shell.coreutils = {
     },
     del: function(args) {
         if (args[1] === undefined) {
-            printerrln("Syntax error");
+            printerrln(`Usage: ${args[0].toUpperCase()} file_to_delete`);
             return
         }
 
@@ -386,7 +383,7 @@ shell.coreutils = {
     },
     mkdir: function(args) {
         if (args[1] === undefined) {
-            printerrln("Syntax error");
+            printerrln(`Usage: ${args[0].toUpperCase()} directory_name_to_create`);
             return
         }
         var path = shell.resolvePathInput(args[1])
@@ -718,6 +715,7 @@ if (goInteractive) {
     let cmdHistoryScroll = 0; // 0 for outside-of-buffer, 1 for most recent
     while (!cmdExit) {
         con.curs_set(1);
+        con.color_pair(shell.usrcfg.textCol,255)
         print_prompt_text();
 
         var cmdbuf = "";
diff --git a/assets/disk0/tvdos/bin/less.js b/assets/disk0/tvdos/bin/less.js
index 202e181..0bbac84 100644
--- a/assets/disk0/tvdos/bin/less.js
+++ b/assets/disk0/tvdos/bin/less.js
@@ -15,7 +15,7 @@ let buf = "";
 let fileContent = undefined
 let key = -1;
 let panSize = termW >> 1;
-let scrollSize = termH >> 3;
+let scrollSize = (termH / 6)|0;
 
 let startAddr = -1;
 let paintCur = 0;
@@ -106,14 +106,18 @@ while (true) {
     /*Q*/if (key == 113 || key == 81) break;
     /*R*/else if (key == 114 || key == 82) repaint();
     /*up*/else if (key == con.KEY_UP) {
-        scroll -= scrollSize;
-        if (scroll < 0) scroll = 0;
-        repaint();
+        if (lineToBytes.length >= termH) { // only allow scrolling if the text is taller than the screen
+            scroll -= scrollSize;
+            if (scroll < 0) scroll = 0;
+            repaint();
+        }
     }
     /*down*/else if (key == con.KEY_DOWN) {
-        scroll += scrollSize;
-        if (scroll > lineToBytes.length - termH) scroll = lineToBytes.length - termH;
-        repaint();
+        if (lineToBytes.length >= termH) { // only allow scrolling if the text is taller than the screen
+            scroll += scrollSize;
+            if (scroll > lineToBytes.length - termH) scroll = lineToBytes.length - termH;
+            repaint();
+        }
     }
     /*left*/else if (key == con.KEY_LEFT && pan > 0) {
         pan -= panSize;