Im trying to install windows 7 on a toshiba tecra laptop. It only has a 1.6ghz celeron processor and 512mb of ram. It had windows vista when I booted it up so presumed windows 7 would install. After checking the microsoft website it states 1gb of ram minimum. Is there any way round this. Ive tried windows 7 ultimate and home premium. Should I try windows 7 starter, what difference is this netbook version to the ultimate version....anything the average user would miss....?