Hi All, I have been using this case for a few weeks and few times so far it appears the screen stays on for no reason, for example last night I looked at the battery before going to bed and it was 89% woke up 8 hours later and it was at 5% the on screen time was at 10 hours and I know I wasn't on my tablet for 10 hours. Can anyone suggest a fix? Can I disable the auto wake when I open and close the book case? Thanks in advance