Mine works, but then goes out, and then back on... it's intermittent.
But I'm taking it that it means it should be swapped for another one.
Very likely. I'd contact support ASAP.
Not worth trying an alternate CAT5 or 6 cable?
Just on the off chance the connection could be fluctuating slightly...
EDIT:
Hmm... I thought post #2 was in fact the OP. The extended "outages" indicate to me that it's likely an internal connection and not the cable.
William, AFAIK, most of these sorts of displays (like in ROMPlers for example) employ separate backlights; the displays themselves are often not illuminated. However, they're usually integrated in my experience and therefore may not be accessible.
... and you can't know if it's something obvious, like a plug connecting the backlight to the motherboard, unless you take a look.
Hmm... as you'd know William, Kemper would prefer that you send it in. If however you're on-tour and absolutely have to try something now, the ball's in your court...
Very useful to know...but stop showing off about your stadium gigs...it makes me feel inadequate 
Hollywood Bowl? Wow! I'm so jealous!!! I'm playing at the local pub on Friday...not quite the same
precisely
Says the enlightened one!!! 
Exactly.
I look at my post and likes numbers....I'm not in the same league!!
I bow to you all
Ridiculous.
Get off your knees, brother. 
