I have an Acer Aspire One D260 who's screen got cracked last night. Looking for replacement screens on ebay and there seems to be different models, how would i know which one to order? Also, is it as easy to change the screen as youtube makes it look? Finally, has anyone changed one of these? The tutorial I saw mentions several screws around the screen holding it in place, whereas mine has only two at the right and left below the screen - would the same principals apply?