Hi All, New user here, not extremely computer literate <g>. I recently purchased a Superpad II from Craigslist. The user manuel sucks. I have figured most issues out myself, but when I power on the device, half the time I get colored lines blocking about 1/4 of the screen. There seems to be no reasoning for it - sometimes it does it, sometimes it doesn't. Really annoying! Is there a fix for that?