Well, here I am, totally stuck. Doing my RAM upgrade on my AAO and I get all the way to the RAM and find the onboard 512Mb chip is not soldered to the motherboard, but sat in what I would assume is the expansion slot. I assume this as there is only one actual 'slot' and beneath it somewhere I assume would be where the soldered chip is affixed. I bought my AAO brand new and it was sealed in the box when it arrived. Somebody help me!! Cheers, Graham