My iPod touch 3g wont charge with wall charger at first. I tested 3 chargers and all didnt work. Just yesterday i bought another charger that worked when i tested. So i charged my ipod at home and problems occurred. My iPod wont listen to my command. When i plugged in it starts to respring. Then when i slide to unlock, SB settings pop out etc etc. When i tap on the app on top right corner, the app below launched. When i double tap home button, tap and hold on an app to close it, i couldnt double tap and only single tap and enter the app instead. What should i do?