diff --git a/sysdata/programs/ps2_mouse_driver/src/main.hb b/sysdata/programs/ps2_mouse_driver/src/main.hb
index 0b70519f..98b360a2 100644
--- a/sysdata/programs/ps2_mouse_driver/src/main.hb
+++ b/sysdata/programs/ps2_mouse_driver/src/main.hb
@@ -1,6 +1,8 @@
 .{memory, buffer, log, string, math} := @use("../../../libraries/stn/src/lib.hb")
 Vec2 := math.Vec2
 
+render := @use("../../../libraries/render/src/lib.hb")
+
 i9 := packed struct {sign: bool, value: u8}
 Button := struct {id: u8}
 LeftButton := Button.(1)
@@ -82,20 +84,31 @@ set_resolution := fn(resolution: Resolution): void {
 	@inline(send_command_byte, resolution.value)
 }
 
+set_up_mouse := fn(): void {
+	@inline(reset_mouse)
+	@inline(set_resolution, res_8count_per_mm)
+	@inline(enable_streaming)
+}
+
 button_states := @as(u8, 0)
 
 main := fn(): int {
 	format_page := memory.alloc(u8, 1024)
 
+	screen := render.init(true)
+
+	// Clear the screen to black.
+	render.clear(screen, render.black)
+
 	send_byte(0x64, 0xA8)
 	log.info("Aux mouse device enabled.\0")
 
-	reset_mouse()
-	set_defaults()
-	enable_streaming()
+	set_up_mouse()
 
-	x := @as(i16, 0)
-	y := @as(i16, 0)
+	set_resolution(res_8count_per_mm)
+
+	x := @as(u8, 0)
+	y := @as(u8, 0)
 
 	loop {
 		loop if (memory.inb(0x64) & 0x20) == 0x20 break
@@ -104,9 +117,7 @@ main := fn(): int {
 		if status == 0xAA {
 			loop if memory.inb(0x60) == 0 break
 			log.info("Mouse plugged in!\0")
-			reset_mouse()
-			set_defaults()
-			enable_streaming()
+			set_up_mouse()
 			continue
 		}
 
@@ -132,12 +143,20 @@ main := fn(): int {
 		dx.value = memory.inb(0x60)
 		dx.sign = (status & 0x10) > 0
 
-		dy.value = memory.inb(0x60) ^ 0xFF
+		dy.value = -memory.inb(0x60)
 		dy.sign = (status & 0x20) == 0
 
 		if dy.value != 0 & dx.value != 0 {
 			mouse_moved(.(dx, dy))
+			x += dx.value
+			y += dy.value
 		}
+
+		render.clear(screen, render.black)
+
+		render.put_rect(screen, .(x, y), .(10, 10), render.white)
+		// Sync the screen
+		render.sync(screen)
 	}
 
 	return 0