When I mash the power button on, the tablet opens the first screen showing the two dogs near the Victrola player. When it opens to the screen showing the Maven Pro logo, it stays there until it runs out of charge. I tried rebooting many times to no avail. It stays on the logo screen. Period. Only movement I see is the shadow that scrolls over the logo. What can I do to fix it? I've had the tablet for about 2 years.