My sisters Ipod 3rd gen 20gb jobbie seems to have given up the ghost. It wont power on, and with the power plugged in if I hold the reset combination keys for 5 secs I get an lcd line accross screen as if it tries to reset, but no other signs of life...I suspect its the battery, and have ordered one, but has anyone else had problems with their ipod like this, or changed the battery? Any tips?