e7 stuck in initialization mode?

I have an e7 with Lighthouse 17.

The unit is displaying the following:

============================
Raymarine Initialization
<WPT> Reset to factory defaults
<BACK> Exit and start the application

Select a key
_

==========================

Nothing happens when pressing any keys other than holding down the power key which restarts the unit.

The unit restarts, the Lighthouse logo is displayed on the screen for a few seconds, then the following character string comes up in the top left corner:

^[[C^[[C^[[C^[[C^[[C^[[C^[[C^[[C

screen then goes back to the 'initialization' screen above.

I"ve cut power to the unit from the breaker...when I go up to the unit after power turned off and back on, it's already in the above process....can't turn it off with the power button and it just recycles the above

thanks!