I just got a 100GB LaCie portable external hard drive and i cant seem to get it to mount. When i tryed it on my 17" PB it would not mount but there would be a red light infront that would light up. AFter a few trys with both firewire and USB i connected the external hard drive to my PM G5 and it worked great. I dont want to use teh external hard drive with power from the wall but rather from my PB like i did with my 80GB hard drive (same size same company). Any ideas?