I just got an Ausdom A261 for Christmas from Amazon. It has worked fine for about 3 weeks. Suddenly it has been powering down and I cannot get it to power back on. I have been using the short cable. Assumed it would work as well as the long one. I can take it in the house and connect it to the PC and it powers up fine. Anyone experience this? I have about 1 more week to send it back to Amazon for a replacement, but wanted to get some feedback here first.