That is the wieght difference between the Gateway 8510GZ that I have had for 2.5 years and the P-171XL FX Edition. I just found this site this last weekend. I am amazed. On this very board, I can go back to the fall of 2005 and read posts of the same questions and problems that others had with thier 8510GZ that I had with mine. Thank you, NBR. I have found a resource I will never be without.