I'm thinking about doing a refresh of my macbook pro because its been giving me alot of the beach ball lately and I have 10+ backups on my external HD. I was thinking about using an older backup to try and determine if its because of all the applications I have now or because I need a refresh. Anything I should be careful of like: -after I refresh with an older backup and Time Capsule does another backup afterwards will I lose all of my newer backups? -will I need to keep track of my serial #s especially since I have Office 08 for mac through downloading from an EPP? BTW I am running on snow leopard but I didn't do a clean install. I just installed it over leopard. I think I heard ppl saying its better to do it clean. That's why I'm starting off with a clean reinstall.