What is wrong with the screen?

Just getting into this device and I have found it difficult to use.
Here is the model I bought.

LattePanda - a Powerful Windows 10 Mini PC 4GB/64GB with Enterprise License - LattePanda V1.0 Edition
https://www.amazon.com/gp/product/B073Z ... TF8&psc=1

For instance, what is wrong with the screen?
See these images:

About 50% of the time it boots like this. No start icons. Waaaaay landscape.
https://photos.app.goo.gl/2A5utmq1iiXNM1uUA


The other 50% it boots like this. Low resolution. And for some reason it tries to mirror the screens. I thought there was only 1 display? Why does it try and go for 2?
https://photos.app.goo.gl/hdwzdyFHdPtWDNhk8


I am using the most basic screen that works perfectly fine with everything else I have ever used. Microscopes, Raspberry Pi, Mac, PC - it works. HDMI 1920 x 1080. Simple.

ASUS VS248H-P 24" Full HD 1920x1080 2ms HDMI DVI VGA Back-lit LED Monitor
https://www.amazon.com/gp/product/B0058 ... TF8&psc=1

So my question is what is going on?

How do I get it to stay on one resolution and not flip back and forth every boot?