Ipad lock in usb Itunes screen

My first generation Ipad is locked on a usb-itunes screen. It went here during a restore because battery wouldnt charge. I have followed all of the advice on how to restore. It will not get me to the power off slide bar when i hold down the screen. I have tried rebooting it multiple time no help. Also Itunes will not pick it up. Neither will my computer. Any help would be greatly appreciated.