NI 9476 only DO0-DO8 are working

I have a NI 9476 in a cRIO 9025.  I've been programming an application and I noticed that if I wrote to DO13 I would alreays read a false value.  I could never set it true.

So I hooked up a 24V LED and wired the supply properly to see if the output was actually working.  It wasn't, and it turn out that only DO0-DO8 are working.  The rest do not even though I can read back the state I set in all the channels except for DO13.

The LED was the first time the NI 9476 has been connected to hardware.  Is this likely to be a faulty NI 9476 or perhaps a driver issue.  NI-RIO 15 is installed.

John