My netbook is the hp mini 210-1155DX. I searched crucial.com and found this 2gb ram stick http/www.crucial.com/store/mpartspecs.aspx?mtbpoid=1BC4A9F1A5CA7304 Then I went to newegg and puchased this one: http/www.newegg.com/Product/Product.aspx?Item=N82E16820231339&Tpk=20-231-339 I tried the ram from newegg today but the netbook screen remains black. I checked again the specs with the one from crucial and they seem correct but I must be missing the difference. Anyone have any ideas on what my mistake is?