This is a new unit and has had this problem from the very beginning.
Unit boots up and works as it should. At some point in time, a few seconds to several minutes, it freezes up. Nothing works, the display is not updating, no buttons will work, you can not shut it down with the button. The only way to shut down is to pull the power plug.
To make this more interesting, at times with no hands on the unit, it will shut down and stay off, or sometimes it will then reboot by itself.
Any help would be much appreciated.
Bruce