Hello. My niece's netbook (Acer Aspire One ZG5 AOA150, WinXP) won't power up at all, even after buying a new DC adapter. Nothing lights up at all after plugging in whether the battery is attached or not. She said the problem started after seeing a spark at the adapter/jack as she tried to connect it to the netbook. The netbook is out of warranty. I've not seen this issue duplicated in all my googling. Nor have I seen sales of replacement power supplies for this netbook, and I can't find a hardware manual for it to see how to open the netbook. We need advice on how to troubleshoot her netbook from here. Any ideas appreciated. Thanks.