receiver not charging

I'm wondering if anyone else has had this problem.  I got a vr-500 for 
Christmas.  When I tried to charge it, it wouldn't take a charge.  I took 
it back to A E S here in Vegas and they did a reset.  The display showed 
charging so I thought it was o.k.  I haven't used it much, but charged it 
once or twice.  Tuesday when I turned it on, it started turning itself off 
and on, so I knew the battery was down.  I left it on charge over night, 
but when I unplugged it yesterday, it hadn't taken a charge.  It runs fine 
on the adapter.  I might explain that I'm totally blind, so I have no way 
to read the state of the battery on the display.  I've figured out how to 
do a few things, but the manual doesn't translate well from pdf to text. 
I've done a couple resets, but my wife says when the receiver is off, the 
display is just dark, but it still isn't charging.  I was just wondering 
if this has been a problem or if anyone has any ideas.  As soon as I can 
get a way to the store, I'll ask the folks at A E S, but thought I'd ask 
on the list in case there is something else I can try.

Thanks.

73
Butch Bussen
wa0vjr
open Node 3148
Las Vegas