I just received my Le Pan, and have spent too much time trying to install the firmware update. I think I've backed up everything onto the SD card, copied the Firmware files to the SD card, but when I get to the screen after pressing volume- and power, it tells me the file is bad. What am I doing wrong??? I had wanted to do this before I install all my apps, but I'm getting ready to throw the tablet out the window instead. HELP!