system ran fine for a good day until this morning when I tried to setup imap mail and it was downloading heavy amounts of msg's and then bsod.
i think there is a high chance the system would bsod during a prime numbers test.
To new users with this laptop, i think snow leopard might be a more stable choice unless you have to use Lion, id avoid as it reminds me more of setting up linux in the early days.
Don't get me wrong, I'm grateful for all the help of the osxlatitude community which without them, I wouldn't be able to even have osx running. but keep in mind, osx LION on a D620 with the current EDP configuration is more of an experimental than stable, and likely lose hours of productivity from making it work and the random bsods. I'm sure some other osx versions with the right hardware runs almost seamless.