Ok, I attached another LCD monitor that was smaller, 1024x768, and this is what happened.
I checked the display size in settings and it is 1024x768.
I went to fdroid->updates and selected one that had been down loaded, Simple solitaire, and the first thing that happened it said "app processor" was not running and then it went into an "Optimize Mode". I waited for it to finish and lo and behold solitaire installed and everything worked just fine.
Put it back on to my larger monitor 1440x900 and it we were right back to rebooting if I tried to load another app.
So, Emteria on a rp3 cann't run above 1024x768 resolution?