My net book Acer Aspire One 722-BZ454 came with only 2 gb of ram. Since I have been flooded with win 7 upgrades and etc..2 gigs seem to slow down my system. I heard owners of the same net book had removed the 2 gigs and replaced it with 4gigs and found that to be very satisfactory. I bought this net book cause of traveling convience and its low price, but i do not want to add more cost to it, because of it.. I realize it would cost me something, so can anyone here recommend where i can get a good price on a 4 gig ram? Also, its a shame about the removable 2 gig i would have to remove..i go back to the days when a pc ran on only 10MB of ram and that was in Oct 1992...and they were very, very expensive then and even rare to get at times.