i remember we had to something (i think it was indexing) on our really old family computer and it occasionally stopped working after a few hours and had to be restarted<br>well... it started out with 20 mins. after 10 mins, it said 2 hours. after an hour, it said 2 days. if i remember correctly, at about 6 hours it then said "20 mins remaining" and it actually only took about 30 before being finished ^^