My htc tatoo screen just keep turning on. It's on lock screen and on my table and I'm not doing anything with it but every 5-10 minutes screen turns on and than again turns off. And when I unloc screen and than trying to lock it back with little red button it doesen't lock but it show my options to turn off the phone etc... But I'm not holding red button I just press it once. And when I go back it shows me that screen few more times. And when I turn it off it just turns off and automaticly turns back on. Any solution? 