There is a “service” menu in the HDX-900. It will allow you to zap the lit pixels with a crosshair.
I don’t have a camera or my notes with me at home (sorry) but when I get to work tomorrow I’ll check and re-post here.
Once you get into the service menu on the HDX you’ll find it…but I can’t remember the button combination to get in there.
Are you renting the camera? If so, ask them how to get into that (hidden) service menu.
Hopefully I’ll be able to help tomorrow.
Cheers,
Brian Broz