I just bought a used Android tablet. I am having a bit of trouble starting up. I am getting a message "How do you slate? Slatedroid.com. I see a green bar scrolling across a white display box, but nothing happens. The only other details on the screen are as follows: Android version: 1.6 kernel version: 2.6.29 WMT SDK version: 1.7.4 The unit came with a 16GB card. The disk contains android files. When I received this unit, it was not charged at all. Any suggestions?