When I went to visit family for the holidays I left my external HDD at home, so it was completely unaccessible for about about 10 days. I left it on, although it was unplugged from any devices, by accident. Today I tried to hook it up to my Macbook via Firewire, and I had no luck. I tried the other firewire port on the external enclosure, and I had the same result. I eventually found a USB cord and hooked it up that way, and now it's connecting and transferring data no problem. Is there a way to check if it's my Macbook port without going out and getting a new enclosure? Thanks for any info. BTW, this is a baseline original macbook running 10.4.11. Thanks for any help!