Need help please. My Granddaughter has a Coby MID7042 was working fine and then all of the sudden the touch screen stopped working. Came on here and download the Zip File, 7042 Touch and put it on the Micro Card and tried to install it put this is what I get when I install it.--- E:signature verification failed Installation aborted. .....does anyone have any input? Also my daughter did do a factor wipe, so if you know where on this forum I can download the latest software please let me know. I don't know much about Colby as I have Samsung Tab 2 10.1 Thank you in advance.