I don't know why but my ext. hard drive is not showing up on my powerbook desktop! I came home from work this morning and booted up the PB but no hard drive partitions.... I have checked the connections and turned it off and on multiple times but nothing. This has my entire iTunes(15gig) and iPhoto(6gig) libraries, as well as my clone of the powerbook's hard drive. What do I do??? LaCie's cust. serv. is not open on Sat. Any suggestions??? Please, anyone??