I recently was given an iBook G3 (I think it is 16 VRAM, A1005). I however was given it without a charger. I bought one on eBay and it came today, but after finally getting it to fit in, (and I know it is the right charger for it), it wouldn't turn on. With, or without the battery. I just get a black screen with no chime. What should I do? I think this computer was rarely if even at all used previously. Any thoughts?