I, and several others of you, had a problem on delta. com about a year ago (if I recall correctly) where you would get this annoying oops...system unavailable message when scrolling through "my itineraries" on delta.com. It appears random and each time I scroll through "my itineraries" it may happen on half of them and not the others (I have nine, at present). It is not always the same ones having that problem, and usually a refresh or two will get them to come up. However, it is time consuming and annoying. This is happening on my account, my wife's (she has ten itineraries), and is not specific to one computer. Just like a year ago, the problem was in Delta's systems and they corrected the problem. I have emailed them and encourage any others of you experiencing this to post here and email them as well. I first noticed the return of this problem on Saturday. It was fine all last week. Thanks.