When I turn my N900 on with no charger plugged in, it displays a blue NOKIA logo on a white screen and wont go any further (no buttons work, only thing that works is yanking the battery). If I plug in the charger, it displays a dim screen with a NOKIA logo and then flashes the charging LED orange.

Does this mean my battery is just flat or could something more serious be preventing my phone from booting? (stuffed up config file?)