diff --git a/stix/kernel/test-014.st b/stix/kernel/test-014.st
index 3285020..5501a1e 100644
--- a/stix/kernel/test-014.st
+++ b/stix/kernel/test-014.st
@@ -55,6 +55,36 @@
 }
 
 
+#class MyConsole(Console)
+{
+	#method box: origin corner: corner
+	{
+		| tmp |
+		self setCursor: origin.
+		self write: '+'.
+		(corner x - origin x - 2) timesRepeat: [self write: '-'].
+		self write: '+'.
+
+		tmp := Point new.
+
+		(origin y + 1) to: (corner y - 1) by: 1 do: [ :i |
+			tmp x: origin x y: i.
+			self setCursor: tmp.
+			self write: '|'.
+
+			tmp x: corner x.
+			self setCursor: tmp.
+			self write: '|'.
+		].
+
+		tmp x: origin x y: corner y.
+		self setCursor: tmp.
+		self write: '+'.
+		(corner x - origin x - 2) timesRepeat: [self write: '-'].
+		self write: '+'.
+	}
+}
+
 #class MyObject(TestObject)
 {
 	#method(#class) main
@@ -62,8 +92,9 @@
 		| v1 v2 |
 		System logNl: 'START OF MAIN'.
 
-		v1 := Console output.
-		
+		v1 := MyConsole output.
+		v1 clear.
+		v1 box: 0@0 corner: 80@20.
 		v1 write: S'hello, 월드 이거 좋지 않니\n'.
 		v1 write: S'하하하하하하하하 좋아좋아 可愛くってしょうがない(^o^) ほのかちゃん、しおりちゃん元気そうだね！ 久しぶりに見た。しおりちゃんどうしたのかな？좋아 하라하하\n'.
 		v1 close.
diff --git a/stix/lib/main.c b/stix/lib/main.c
index c340301..e79ae4b 100644
--- a/stix/lib/main.c
+++ b/stix/lib/main.c
@@ -265,7 +265,7 @@ static void* mod_open (stix_t* stix, const stix_ooch_t* name)
 	stix_oow_t len;
 	void* handle;
 
-/* TODO: using MODPREFIX isn't a good idean for all kind of modules.
+/* TODO: using MODPREFIX isn't a good idea for all kind of modules.
  * OK to use it for a primitive module.
  * NOT OK to use it for a FFI target. 
  * Attempting /home/hyung-hwan/xxx/lib/libstix-libc.so.6 followed by libc.so.6 is bad.
@@ -284,16 +284,18 @@ static void* mod_open (stix_t* stix, const stix_ooch_t* name)
 
 	stix_copybcstr (&buf[bcslen + len], STIX_COUNTOF(buf) - bcslen - len, STIX_DEFAULT_MODPOSTFIX);
 
-printf ("MOD_OPEN %s\n", buf);
 	handle = lt_dlopenext (buf);
 	if (!handle) 
 	{
 		buf[bcslen + len] = '\0';
-printf ("MOD_OPEN %s\n", &buf[len]);
 		handle = lt_dlopenext (&buf[len]);
+		if (handle) STIX_DEBUG2 (stix, "Opened module file %s handle %p\n", &buf[len], handle);
+	}
+	else
+	{
+		STIX_DEBUG2 (stix, "Opened module file %s handle %p\n", buf, handle);
 	}
 
-printf ("MOD_OPEN RET=>%p\n", handle);
 	return handle;
 
 #else
@@ -304,6 +306,7 @@ printf ("MOD_OPEN RET=>%p\n", handle);
 
 static void mod_close (stix_t* stix, void* handle)
 {
+	STIX_DEBUG1 (stix, "Closed module handle %p\n", handle);
 #if defined(USE_LTDL)
 	lt_dlclose (handle);
 #elif defined(_WIN32)
@@ -323,32 +326,35 @@ static void* mod_getsym (stix_t* stix, void* handle, const stix_ooch_t* name)
 	stix_bch_t buf[1024]; /* TODO: use a proper buffer. dynamically allocated if conversion result in too a large value */
 	stix_oow_t ucslen, bcslen;
 	void* sym;
+	const char* symname;
 
 	buf[0] = '_';
 
 	ucslen = ~(stix_oow_t)0;
 	bcslen = STIX_COUNTOF(buf) - 2;
 	stix_ucstoutf8 (name, &ucslen, &buf[1], &bcslen);
-printf ("MOD_GETSYM [%s]\n", &buf[1]);
-	sym = lt_dlsym (handle, &buf[1]);
+	symname = &buf[1];
+	sym = lt_dlsym (handle, symname);
 	if (!sym)
 	{
-printf ("MOD_GETSYM [%s]\n", &buf[0]);
-		sym = lt_dlsym (handle, &buf[0]);
+		symname = &buf[0];
+		sym = lt_dlsym (handle, symname);
 		if (!sym)
 		{
 			buf[bcslen + 1] = '_';
 			buf[bcslen + 2] = '\0';
-printf ("MOD_GETSYM [%s]\n", &buf[1]);
-			sym = lt_dlsym (handle, &buf[1]);
+
+			symname = &buf[1];
+			sym = lt_dlsym (handle, symname);
 			if (!sym)
 			{
-printf ("MOD_GETSYM [%s]\n", &buf[0]);
-				sym = lt_dlsym (handle, &buf[0]);
+				symname = &buf[0];
+				sym = lt_dlsym (handle, symname);
 			}
 		}
 	}
 
+	if (sym) STIX_DEBUG2 (stix, "Loaded module symbol %s from handle %p\n", symname, handle);
 	return sym;
 #else
 	/* TODO: IMPLEMENT THIS */
diff --git a/stix/lib/mod-con.c b/stix/lib/mod-con.c
index 181f2a5..c33c3fa 100644
--- a/stix/lib/mod-con.c
+++ b/stix/lib/mod-con.c
@@ -187,18 +187,37 @@ static int prim_write (stix_t* stix, stix_ooi_t nargs)
 	return 1;
 }
 
+static int prim_clear (stix_t* stix, stix_ooi_t nargs)
+{
+	console_t* con;
+
+	con = STIX_OOP_TO_SMOOI(STIX_STACK_GETARG(stix, nargs, 0));
+
+	write (con->fd, con->clear, strlen(con->clear));
+
+	STIX_STACK_SETRETTORCV (stix, nargs);
+	return 1;
+}
+
 static int prim_setcursor (stix_t* stix, stix_ooi_t nargs)
 {
 	console_t* con;
-	stix_ooi_t x, y;
+	stix_oop_oop_t point;
 	char* cup;
 
 	con = STIX_OOP_TO_SMOOI(STIX_STACK_GETARG(stix, nargs, 0));
-	point = STIX_OOP_TO_SMOOI(STIX_STACK_GETARG(stix, nargs, 1));
+	point = STIX_STACK_GETARG(stix, nargs, 1);
 
-	cup = tiparm (con->cup, point->slot[0], point->slot[1]);
+/* TODO: error check, class check, size check.. */
+	if (STIX_OBJ_GET_SIZE(point) != 2)
+	{
+		return 0;
+	}
+
+	cup = tiparm (con->cup, STIX_OOP_TO_SMOOI(point->slot[1]), STIX_OOP_TO_SMOOI(point->slot[0]));
 	write (con->fd, cup, strlen(cup)); /* TODO: error check */
-	free (cup);
+
+	STIX_STACK_SETRETTORCV (stix, nargs);
 	return 1;
 }
 
@@ -213,6 +232,7 @@ struct fnctab_t
 
 static fnctab_t fnctab[] =
 {
+	{ "clear",      prim_clear     },
 	{ "close",      prim_close     },
 	{ "open",       prim_open      },
 	{ "setcursor",  prim_setcursor },