My XD has performed flawlessly for several months.
Recently it began to act oddly -- every 15 to 30 minutes or so it seems to "lose" the HDMI signal it is being fed and my screen (a Marantz S4) goes blank except for a message saying "out of range" .... switching inputs on the XD does not restore the picture, but turning the Radiance on and back off via the remote does. Sometimes, but not always, the XD also turns itself "off", as indicated by the front power light turning from green to red.
I do not lose the sound, which is also switched by the XD
Turning the S4 off and back on does not restore the picture.
This happens on both of my inputs (one is a Hughes HD250 D* unit, the other is a Meridian DVD player) so I know it's not the input source that's the problem.
Thus, I'm pretty sure it is the XD that's the problem.
I have not done any firmware etc. updates since first installing the unit.
Trouble shooting suggestions?