halo 3 terminals advice please?

[Sora]

I got all seven terminals... I didn't get the achievement! I got all the terminals from mission start and got the terminals and completed each level.... Why don't I have the achievement?

Gamertag: Delicious Hobo

 

[charlie h]

Same thing happened to me. But check out this website and click on halo3 they might be able to help you. http://www.xbox360achievements.org/games/Retail/

 

[lubufan]

I had the problem too, thing is, you have to wait until the terminals turn red... like when your looking at it, just wait, it will soon turn red and change the text, wait until it stops moving and you will get the achievement. Sorry you gotta do them again...I'll help though!
Tag: Sillva warlord