I tried posting this on the microsoft forums but they seem to be very slow.
When I'm trying to type in my password or fullscreen a video, instead of touching the screen selecting the field or fullscreening the video, it will create a small window which displays a zoomed in version of the area I touched. This is very annoying doesn't actually let me fullscreen or enter my password. Also sometimes instead of switching from the e-mail to password text fields it will assume I just want to copy text.