Originally Posted by jeremyckitching
On my 8700g (even though I haven't used this setting) it looks to be located in Options > SMS Text > Delivery Reports. Not sure what this will do, but it seems to be the setting for which you are looking.
Update: I just tested this out and, once delivered, it will display a little "D" over the check mark for the text message. Now I don't know if it WON'T show this "D" if the other phone is turned off. I tested this by sending myself a text message.
Hmmm. I dont have this option in my curve. Wonder why?