I bought a 12" PB G4 (model A1010, 1.33 GHz) from eBay, and I'm having trouble getting it to boot. I bought a 3rd-party 65W adapter, which appears to charge the battery just fine - the indicators on the battery blink in sequence as the battery charges. However, nothing happens when I press the power button. Sometimes when I press the power button, the screen backlight comes on, and the Caps Lock key lights up as I toggle it, but nothing else happens. No spinning drive, no chime, nothing. I've tried with and without the battery. I have tried allowing it to charge overnight. Nothing seems to help here. Any ideas? Or did I just buy a paperweight?