I am using version 17.3 on OpenVIX 5.0.016 on a Xtrend ET10000

I cannot seem to find a way to scale the Kodi UI to fill the screen on a regular HD TV. It stays in the bottom left corner. The Display Mode is locked on Windowed and changing the resolution in the KODI Display settings has no apparent effect. Is there any way to scale up the interface? See attached screenshot.

IMG_3004.jpg