Purchased a new Tivo during the boxing day specials for $199. However since getting it, it has been regularly crashing or freezing on a blank grey screen. eg I turn the TV on, and all that displays is a grey screen, and the fan on the back of the tivo is load(at full blow), and it is totally unresponsive if I press the tivo button or try to change channels.Thus I have to unplug it from the power supply and replug it back in.

Other times I am watching something recorded, and it will then freeze for a few seconds and then restart itself with the 'powering up' page. Sometimes when it does this it doesn't complete the startup, and recrashes and freezes on the startup page (left it for 30 minutes), so I have to unplug again.

In total it has crashed about 5 times in a week, and it hasn't had that much use.

I do have another tivo that is a year old, and hasn't had this problem, and I do know how they work.

I could ring tivo, and they will probably send me out a refurbished replacement. However as it is brand new, should I just take it back to the retailer for replacement, as it is essentially DOA? Also I did purchase a brand new product, not something that has been refurbished, which is what I would end up with if I phoned tivo.