JDenmark

I power on my Pod HD, I see the title/logo screen all nice and bright for about 5 seconds, then it gets dim for about a half a second, then bright but blank for a fraction of a second, then the process repeats. And that's all it does. Is there some sort of reset/re-boot "hold down this button while powering on the unit" procedure that will take care of this, or is my unit toast, as they say? Thanks!