My unit has been acting weird of late. Channels don't change, banner display won't go away.......and my list of recorded programs is jumbled. I have been turning the unit off for a few minutes then back on and all seems well. But it's been almost an everyday occurrence lately. Today it just won't start up. I get the "hello your system is starting up" message then a quick flash then nothing. Been resetting it all day and leaving it un plugged for hours at a time and still nothing. Is there a way to force a boot up??? Or is all lost and time to buy a new machine. It's about a years or so old!Help!!!!!