OK, hypothetically now, if I had installed a copy of Microsoft office X on my G4 tower and the same copy on my ti-book and both machines were on a wireless network how would I be able to use word or excel or whatever on the ti-book while it was open on the tower? I've HEARD that if office is running on one machine it won't let the program open on the other machine. I would of course never do that - I'd spend $400 on the software for each machine - but hypothetically..... Paul