IGO Primo losing it's mind...!!! Help please...

[Haylands]

I have an Erisin ES5395U head unit in my car, it's just like a tablet..

Spoiler: device

https://www.erisin.com/erisin-es5395u-62-universal-touch-screen-car-dvd-android-60-gps-navigation_p808.html

It is running IGO Primo My Way barsarsoft 9.6.29.468978 Dec 16 2014 which came from Erisin already loaded..

It "forgets" the settings you chose for the three data fields in the bottom right hand corner of the screen, set them to what you want and on the next restart it reverts to default.... not a massive issue but pretty annoying...

Also if you ask it to show the speed limit on the screen the roundel with the speed in is above the "menu" button but is overlapping the top of the button making it difficult to press....

Apart from that it works great...

Anyone know how to fix these issues or should I just junk it and install something else entirely from here, if so which one is best (and easiest as I'm old and wrinkly and was brought up on pen and paper and not these new fangled computermebob things... although I can usually find my way round things...!!!)

I did try the search function and have read tons on here but not this particular problem.

Thanks for reading this far... hope you can help...