i'm on the phone now with my fourth powerbook problem. it's one of the last of the Ti's, i bought it about 20 months ago before my freshman year of college started about 3 weeks before the Aluminum update (to my dismay). this thing has been dependably undependable. about every 6 months something has gone wrong enough that i have to send it away. and they've pretty much been different every time. first time it was this nasty sound issue followed by entire system freeze. second time it was this weird static looking lines across the display. third time the thing wouldn't even start up. now i've got what looks like a revisiting of the 2nd issue. i'm wondering how many times i have to go through with this. 4 times? 5? 6? is there something else i can do besides constantly sending it back over and over again until my Applecare runs out? i asked the Applecare agent on the phone if there could be something that they would do for me after 4 times. she wasn't budging. maybe i should have talked to her manager i dunno. but the box is on it's way and i'm really not satisfied with how this has been going for the past year and a half. anyone out there have any similar experiences? what can i do?