GOT AN ASUS VIVO TAB RT ON NOVEMBER 28TH. MY SHIFT KEYS ARE NOT WORKING. HONESTLY NOT SURE IF THEY EVER HAVE. USED THE TABLET FOR THE MOST PART TO TYPE. MY STICKY KEYS ARE NOT TURNED ON. I TRIED ANOTHER KEYBOARD JUST LIKE THIS ONE AND IT WORKED. IS THERE SOMETHING I'M MISSING HERE. PLEASE HELP.