Today when I woke up, the left click on my laptop was non-functional. I could click it, but nothing would happen. I tried dragging my mouse across my screen to create a box, nothing happened. I tried opening files, nothing happened. I've had issued with the left clicker on my laptop. It would always get stuck from dust and stuff getting under the clicker. But this has never happened. It's completely non-functional. It was working fine yesterday. What can I do. I don't think it's broken. I've had this laptop for less than 2 years. It's an ASUS by the way.