Alright, I've my PSP since christmas and had no problems with it. Then I baught a USB cable recently and have been loading stuff on and off it. Anyways, the other day I got to plug it in to the wall charger and it doesn't do anything. The orange light won't turn on and it doesn't say it's connected. When I plug it back into the USB power source it works...but sometimes it doesn't charge, it will just say "external power". Do you think there is something wrong with the battery? or the hole I plug it in?