i have a emachine T2885 it has 2.80GHz Intel celeron processor 80gb hard drive and it came with 512mb ram and i upgraded just recently to 1 gig and i'm running windows xp home edition. i down loaded free ram xp pro 1.52. its showing that i only have 490mb of ram left. when i get onto the internet and have like 2 windows open it goes down to 210mb and gets real slow. do i have to do something to tell the computer that i added ram? I've searched on here about what to do if your computer is slow and i have done all of them and its still slow.