diff --git a/src/sys/init/main.c b/src/sys/init/main.c
index 788729f..6f5801c 100755
--- a/src/sys/init/main.c
+++ b/src/sys/init/main.c
@@ -21,7 +21,9 @@
 
 void _start() {
   asm(
-    "lgdt (gdt)\n"
+    "lgdt (gdt)     \n"
+    "mov $0x18,%ax  \n"
+    "ltr %ax        \n"
     );
   main();
   while (1);
diff --git a/src/sys/kernel/Makefile b/src/sys/kernel/Makefile
index ca6065c..7b00d01 100755
--- a/src/sys/kernel/Makefile
+++ b/src/sys/kernel/Makefile
@@ -14,7 +14,7 @@
 REMOVE = rm -fr
 
 #  Objects
-OBJS = io.o version.o
+OBJS = io.o kprintf.o version.o
 
 all: $(OBJS)
 
diff --git a/src/sys/kernel/kprintf.c b/src/sys/kernel/kprintf.c
new file mode 100755
index 0000000..1de1de4
--- /dev/null
+++ b/src/sys/kernel/kprintf.c
@@ -0,0 +1,8 @@
+/**************************************************************************************
+ Copyright (c) 2002
+      The UbixOS Project
+
+ $Id$
+**************************************************************************************/
+
+#include <drivers/video.h>
\ No newline at end of file