Have an iPad 64Gb 3g which was jail broken on 4.3.5, I upgraded to 5.0 but after nearly every app crashing repeatedly I looked for possible solutions and thought the best for the moment was to downgrade using saved SHSH and restore. Then arrived fresh problems with the settings being blank -literally no text - so I though fine I will restore again, and tried to power down to enter DFU mode. Now the screen has been for over one hour with the apple showing and the circle. The power will not respond, connecting to pc iTunes recognises it as being there but just the circle next to the iPad name appears. Help what can I do? I was thinking of waiting until the battery was flat but it was over 80% charged, is that an option?