What’s Up With the English Dub of Neon Genesis Evangelon

I was watching clips of the English dub of Neon Genesis Evangelion, but they seem to leave things out that the Japanese version with English Subtitles has, such as translations of signs, or computer readouts. I would think it was just as important to translate those, not just have the people speaking English. I guess if I ever get that DVD, and listened to the English Dub, I would perhaps turn on the English Subtitles just to get the sign translations. Of course the problem with listening to an English Dub while watching the English Subtitles can get you confused on some DVDs since the English Dub is so far off from what the English Subtitles say… and it is impossible to tell which is correct (well, without knowing Japanese anyhow, which kind of would kill the need for English Subtitles or Dubs in the first place).
A small aside, if I got that DVD, there are two others I would have to get as well. That has the full series, but is missing two rather important movies, Neon Genesis Evangelion – Death & Rebirth (not really available from Amazon, they just link to other retailers who sell it) and perhaps more importantly (after the main set anyhow) Neon Genesis Evangelion – The End of Evangelion.
Of course over the big collection I would prefer the 7 individual Platinum Collection (very important that it is the Platinum Collection for my personal tastes) disks since the special features are taken out of the collection (first link above), but those are harder to find (sort of like End and Death & Rebirth).