I tried to D/L 4.1 yesterday. It's a HUGE file! After 90 minutes it reached 100%, paused, then I got a "time out" error. I figured I'd just click update again and it would resume where it had previously stopped. But NO, it wanted to start all over again. I had already busted my providers FAP with the first download so decided I would try again after 0200 AM when it is a free download time. I started a new update about 2:15 this morning and saw that the d/l was happening before I went back to bed. When I got up this morning there was STILL no update. iTunes (10) had closed so there was no error message. There was also no sign of the download. My iP4 still shows version 4.0. Is there somewhere to look on the computer to see if the OS file was downloaded? Why is the d/l not completing? Why is it timing out? Are you suppose to turn off your firewall and anti-virus? Is there some other place to grab this update file other than through iTunes?