I just purchsed this tablet as a refurb from Newegg, and generally I've very pleased with it. My sole issue with it is this: THe MAC address changes everytime it is powered off and back on again. First off, other than deliberate hacks and spoofs, I didn't think this was possible. It's a serious problem for me since my wireless AP uses MAC filtering as a part of my network security. Therefore, I have to go into the router to change the tablet's MAC in the 'allow' table to get it to connect. I have tried various searches to find information, but the only things I found were dead ends. Anyone have any ideas?