Hello again $$ nice to see you at the picnic a week ago. Have you recovered from swallowing that golf ball? Anyway, some of the secretaries in the executive offices were talking about the lecture you gave us a couple of months ago about computer safety and we realized that we were not clear about the different kinds of backups that you mentioned. I think you talked about full, differential, incremental and some other name I forget. You also mentioned the advantages of keeping numbered versions of documents during the development cycle and storing them offsite. Can you explain what the types of backups are and why you would use one instead of another, then discuss where we are storing our system backups. Thanks! And don$$t swallow any more golf balls!