STB Choice?

[menton11]

When they did the Guide update a few days ago, my bedroom box (Motorola 7100-2) did not work.  I called, and they sent me another box (Motorola 7100-1).  Since then, the original box has started working.  

In spite of a similar model #, these boxes look totally different.   The 2 is black with no front display except for a power light indicator and is compact.  The 1 which is the replacement, is silver color and is full size.   

This is the 7100-1:

This is the 2:

Is there a feature difference, or any advantage to one of these boxes over the other?  Which one should I keep and which one should I send back?  I have this choice because the original one is working perfectly now. 

[tns]

The black 7100-2 is a newer model.  It is also greener using less power.  Its chips are a generation newer but mostly the same specs except power usage.