My girlfriend got a brand new 2.4 aluminum unibody macbook (2gb of ram 250g hd) for xmas and she used migration assistant (transfered everything from an old ibook G4) and just followed the instructions through that. Well her computer is laggy as ****. I am talking everything on her computer is affected. Click on any folder and it literally will take 5-10 seconds for it to process and show its contents. The internet browsers are slow, all apps are slow - it just runs very sluggish. Why? She uses her computer for the most basic functions; internet, word processing, email etc. It has 2gb of ram and 170gb of her HD is free. It really makes no sense. I've heard to never use migration assistant, that its better to just have everything fresh and new - so I'm thinking it might be that. Wondering if anyone has had a similar problem? If anyone has any tips or things I could check or anything, its appreciated. Also wondering if I'm going to have to back up her stuff and just wipe her computer and do a fresh install. Thanks.