diff --git a/src/net/torvald/tsvm/VMGUI.kt b/src/net/torvald/tsvm/VMGUI.kt
index 78606d0..1392715 100644
--- a/src/net/torvald/tsvm/VMGUI.kt
+++ b/src/net/torvald/tsvm/VMGUI.kt
@@ -25,7 +25,7 @@ class VMGUI(val appConfig: LwjglApplicationConfiguration) : ApplicationAdapter()
     override fun create() {
         super.create()
 
-        gpu = GraphicsAdapter(lcdMode = false)
+        gpu = GraphicsAdapter(lcdMode = true)
 
         vm.peripheralTable[1] = PeripheralEntry(
             VM.PERITYPE_TERM,
@@ -49,7 +49,7 @@ class VMGUI(val appConfig: LwjglApplicationConfiguration) : ApplicationAdapter()
         // TEST PRG
         vmRunner = VMRunnerFactory(vm, "js")
         coroutineJob = GlobalScope.launch {
-            vmRunner.executeCommand(gpuTestPaletteJs)
+            vmRunner.executeCommand(sanitiseJS(gpuTestPaletteJs))
         }
     }
 
@@ -212,7 +212,7 @@ while true do
 end
     """.trimIndent()
 
-    private val jscode = """
+    private val gpuTestPaletteJs = """
 var w = 560;
 var h = 448;
 var hwoff = 1048576;
@@ -254,12 +254,18 @@ while (true) {
     
     var tend = vm.nanoTime();
     
-    print("Apparent FPS: " + (1000000000 / (tend - tstart)));
+    println("Apparent FPS: " + (1000000000 / (tend - tstart)));
 }
 """.trimIndent()
 
-    private val gpuTestPaletteJs = "function print(s){vm.print(s)}eval('${jscode.replace(Regex("//[^\\n]*"), "").replace('\n', ' ')}')"
-
+    private val shitcode = """
+println("064 KB OK");
+println("");
+println("Starting TVDOS...");
+println("TSVM Disk Operating System, version 1.20");
+println("");
+print("C:\\\\>");
+    """.trimIndent()
 
     private val gpuTestPaletteJava = """
 int w = 560;
diff --git a/src/net/torvald/tsvm/VMJSR223Delegate.kt b/src/net/torvald/tsvm/VMJSR223Delegate.kt
index 7848c9d..841240b 100644
--- a/src/net/torvald/tsvm/VMJSR223Delegate.kt
+++ b/src/net/torvald/tsvm/VMJSR223Delegate.kt
@@ -14,6 +14,10 @@ class VMJSR223Delegate(val vm: VM) {
     fun free(ptr: Int) = vm.free(ptr)
 
     fun print(s: String) {
+        //print("[Nashorn] $s")
+        vm.printStream.write(s.toByteArray())
+    }
+    fun println(s: String) {
         //println("[Nashorn] $s")
         vm.printStream.write((s + '\n').toByteArray())
     }
diff --git a/src/net/torvald/tsvm/VMRunnerFactory.kt b/src/net/torvald/tsvm/VMRunnerFactory.kt
index a657dbb..83dbcd7 100644
--- a/src/net/torvald/tsvm/VMRunnerFactory.kt
+++ b/src/net/torvald/tsvm/VMRunnerFactory.kt
@@ -1,5 +1,6 @@
 package net.torvald.tsvm
 
+import java.io.FileReader
 import javax.script.Compilable
 import javax.script.ScriptContext
 import javax.script.ScriptEngineManager
@@ -53,6 +54,10 @@ object VMRunnerFactory {
                         //bind.put("poke", { a: Long, b: Byte -> vm.poke(a, b) }) // kts: lambda does not work...
                         //bind.put("nanotime", { System.nanoTime() })
                         bind.put("serial", VMSerialDebugger(vm))
+
+                        if (extension == "js") {
+                            engine.eval(toSingleLine(JS_INIT), context)
+                        }
                     }
 
                     override suspend fun executeCommand(command: String) {
@@ -64,4 +69,16 @@ object VMRunnerFactory {
             //else -> throw UnsupportedOperationException("Unsupported script extension: $extension")
         }
     }
-}
\ No newline at end of file
+
+    private val JS_INIT = """
+function print(s) {
+    vm.print(s)
+}
+function println(s) {
+    vm.println(s)
+}
+    """
+}
+
+fun toSingleLine(code: String) = code.replace(Regex("//[^\\n]*"), "").replace('\n', ' ')
+fun sanitiseJS(code: String) = "eval('${toSingleLine(code)}')"
diff --git a/src/net/torvald/tsvm/peripheral/GraphicsAdapter.kt b/src/net/torvald/tsvm/peripheral/GraphicsAdapter.kt
index 0397748..732c371 100644
--- a/src/net/torvald/tsvm/peripheral/GraphicsAdapter.kt
+++ b/src/net/torvald/tsvm/peripheral/GraphicsAdapter.kt
@@ -464,14 +464,16 @@ class GraphicsAdapter(val lcdMode: Boolean = false) : GlassTty(Companion.TEXT_RO
 
         if (!graphicsUseSprites) {
             // draw texts
+            val (cx, cy) = getCursorPos()
 
             // prepare char buffer texture
             for (y in 0 until TEXT_ROWS) {
                 for (x in 0 until TEXT_COLS) {
+                    val drawCursor = textCursorIsOn && cx == x && cy == y
                     val addr = y.toLong() * TEXT_COLS + x
-                    val char = spriteAndTextArea[memTextOffset + addr].toInt().and(255)
-                    val back = spriteAndTextArea[memTextBackOffset + addr].toInt().and(255)
-                    val fore = spriteAndTextArea[memTextForeOffset + addr].toInt().and(255)
+                    val char = if (drawCursor) 0xDB else spriteAndTextArea[memTextOffset + addr].toInt().and(255)
+                    val back = if (drawCursor) ttyBack else spriteAndTextArea[memTextBackOffset + addr].toInt().and(255)
+                    val fore = if (drawCursor) ttyFore else spriteAndTextArea[memTextForeOffset + addr].toInt().and(255)
 
                     textPixmap.setColor(Color(0f, 0f, char / 255f, 1f))
                     textPixmap.drawPixel(x, y)
@@ -519,7 +521,7 @@ class GraphicsAdapter(val lcdMode: Boolean = false) : GlassTty(Companion.TEXT_RO
                     paletteOfFloats[4 * ttyFore + 2],
                     paletteOfFloats[4 * ttyFore + 3]
                 )
-                val (cursorx, cursory) = getTtyCursorPos()
+                val (cursorx, cursory) = getCursorPos()
                 batch.draw(faketex, cursorx * chrWidth, (TEXT_ROWS - cursory - 1) * chrHeight, chrWidth, chrHeight)
             }*/
         }
diff --git a/src/net/torvald/tsvm/peripheral/IOSpace.kt b/src/net/torvald/tsvm/peripheral/IOSpace.kt
index 7d23dd5..f7409cd 100644
--- a/src/net/torvald/tsvm/peripheral/IOSpace.kt
+++ b/src/net/torvald/tsvm/peripheral/IOSpace.kt
@@ -18,6 +18,5 @@ class IOSpace : PeriBase {
     }
 
     override fun dispose() {
-        TODO("Not yet implemented")
     }
 }
\ No newline at end of file