Dive Unity Demo - cannot hide mouse cursor

Hello, everyone, first-time poster here. I am trying to port some of my Unity experiments over to the Durovis Dive for VR (not difficult to implement - the difference is you have 2 cameras instead of one and you add the Dive script that gets the phone's gyro readings and moves the parent of the two cameras accordingly, then export all for Android). In my non-VR version of the project I am able to hide the mouse cursor successfully with Screen.showCursor = false. However, I am not able to do that even in the Dive Demo Scene, let alone in my ported VR project. I am aware that not many people are developing for this, but my question is not really very Dive-plugin-specific. My request is if someone could download the Dive Unity Demo http://www.durovis.com/unity/Dive_Unity_Demo_2.1.1.zip and try and hide the mouse cursor. I would be grateful for your help. If you are wondering "Why on earth does he need to plug in a mouse for an android VR project", believe me, I know what I am doing (or at least I think so...) :)