I honestly have no clue what to do. I just ordered Snow Leopard and currently have the Leopard OS. I know once I get the new OS I just have to insert the disk and follow the on screen directions. I feel stupid for asking this but... The one thing I'm a little confused about are the files on my MacBook. Will I have to back them up prior to the new install or if I don't back them up will my files still be there once the upgrade has finished?