why? just an experiment? ... or you want to return it under warranty because you don't want it anymore? if it's a warranty claim, almost any excuse will do, even if the box is still working. i worked for a major retailer for several years, and was always getting returns into the service center that were perfectly fine. most retailers adhere to "the customer is always right", so they'll give you the benefit of the doubt. on the service level, if it were up to me, i'd be refusing a lot of warranty claims, but at the retail level that's seldom done