diff --git a/com/isoterminal.js b/com/isoterminal.js
index 62ba49f..c6285f4 100644
--- a/com/isoterminal.js
+++ b/com/isoterminal.js
@@ -44,7 +44,7 @@ if( typeof AFRAME != 'undefined '){
       muteUntilPrompt:{ type: 'boolean',"default":true},     // mute stdout until a prompt is detected in ISO
       HUD:            { type: 'boolean',"default":false},    // link to camera movement 
       transparent:    { type:'boolean', "default":false },   // need good gpu
-      memory:         { type: 'number',  "default":40  },    // VM memory (in MB) [NOTE: quest or smartphone might crash > 40mb ]
+      memory:         { type: 'number',  "default":64  },    // VM memory (in MB) [NOTE: quest or smartphone might crash > 40mb ]
       bufferLatency:  { type: 'number', "default":1  },    // in ms: bufferlatency from webworker to xterm (batch-update every char to texture)
       debug:          { type: 'boolean', "default":false }
     },
@@ -311,7 +311,7 @@ if( typeof AFRAME != 'undefined '){
         cols: this.cols, 
         rows: this.rows,
         el_or_id: el,
-        max_scroll_lines: this.rows, 
+        max_scroll_lines: this.rows*2, 
         nodim: true,
         rainbow: [VT100.COLOR_MAGENTA, VT100.COLOR_CYAN ],
         xr: AFRAME.scenes[0].renderer.xr,
@@ -376,7 +376,7 @@ if( typeof AFRAME != 'undefined '){
       this.data.width -= this.data.padding*2
       this.data.height -= this.data.padding*2
       this.cols = Math.floor(this.data.width/this.data.lineHeight*2)
-      this.rows = Math.floor(this.data.height*0.53/this.data.lineHeight*1.7) 
+      this.rows = Math.floor( (this.data.height*0.93)/this.data.lineHeight) 
     },
 
     events:{
diff --git a/com/isoterminal/ISOTerminal.js b/com/isoterminal/ISOTerminal.js
index dc6ae8e..ccdf192 100644
--- a/com/isoterminal/ISOTerminal.js
+++ b/com/isoterminal/ISOTerminal.js
@@ -227,6 +227,8 @@ ISOTerminal.prototype.startVM = function(opts){
 \r https://www.w3.org/TR/webxr
 \r https://three.org 
 \r https://aframe.org 
+\r https://busybox.net
+\r https://buildroot.org
   `
 
   const text_color = "\r" 
diff --git a/com/isoterminal/VT100.js b/com/isoterminal/VT100.js
index 2465af8..05c98ec 100644
--- a/com/isoterminal/VT100.js
+++ b/com/isoterminal/VT100.js
@@ -100,6 +100,8 @@ function VT100(opts)
 		bg = VT100.COLOR_TRANSPARENT //COLOR_BLACK;
 	}
 
+  console.dir(opts)
+
 	var r;
 	var c;
 	var scr = typeof el_or_id == 'string' ? document.getElementById(el_or_id) : el_or_id
@@ -120,7 +122,9 @@ function VT100(opts)
 		this.redraw_[r] = 1;
 	}
 	this.scr_ = scr;
-  this.scr_.style.display = 'inline'
+  this.scr_.style.display = 'block'
+  this.scr_.style.overflowY = 'scroll'
+  this.scr_.style.height = '100%'
   this.setupTouchInputFallback() // smartphone/android 
 	this.cursor_vis_ = true;
 	this.cursor_key_mode_ = VT100.CK_CURSOR;
@@ -659,10 +663,10 @@ VT100.prototype.refresh = function VT100_refresh()
 
 	// XXX: Remove older rows if past max_ht_ rows.
 	var num_rows = this.num_rows_ - this.start_row_id;
-	if (num_rows >= (this.max_ht_ + 100)) {
-		// Remove one group of rows (i.e. a 100 rows).
-		this.scr_.removeChild(this.scr_.firstChild);
-		this.start_row_id += 100;
+	if ( this.scr_.firstChild && num_rows >= (this.max_ht_ + 100)) {
+    // Remove one group of rows (i.e. a 100 rows).
+    this.scr_.removeChild(this.scr_.firstChild);
+    this.start_row_id += 100;
 	}
 
 	for (r = 0; r < ht; ++r) {
@@ -744,6 +748,7 @@ VT100.prototype.refresh = function VT100_refresh()
 		div_element.innerHTML = row_html;
 		//dump("adding row html: " + row_html + "\n");
 	}
+  this.scr_.scrollTop = this.scr_.scrollHeight
   this.curs_set(1)
 }