My son give me Arnova 10b tablet. When I use it is very frustrate. It will hang or crash very often. I need to reset from pin hole all time. But I can not stand is it will take a lot of time to reboot it. Sometimes I cannot reboot and need to download firmware again. I also found it will hang to copy firmware from PC. Sometime it will be success but I use file compare two file the file is corrupted. I found write is the problem but read is fine. Is any one has this kind of situation and how to resolve?