I'm having a problem with my new Asus Zenbook UX305. I just got it yesterday and so far I love it. However, when I close the lid it freezes. It does not freeze every single time I close it, but if I leave it closed for awhile it freezes. I currently have it set so that when I close it, it stays on and does nothing. But it also froze when I closed it on the sleep setting. What should I do?