At the moment My laptop which is a 1.73ghz intel centrino with 512 mb of memory. I have found it been very sluggish ever since i have installed office 2003. Also boot up is not as quick as normal so am wondering if i upgraded memory I would see a different? If not I may buy a apple macbook as i been thinking about it for a couple of weeks now but would still like to try and get my sony laptop tip tops