I have this same problem with my replacement HTC Incredible. My old Incredible worked but my warranty replacement one wont do it.
I tried this, on the phone screen I went to menu and settings. There is no "Call settings"
I do not have an option for auto screen on or off during calls.
I have looked every where for this type of option and cannot find it.
I'm annoyed.
I'm sure one of you Guru's knows what I'm doing wrong.
Umm, you're posting an HTC Incredible question in a Samsung Galaxy forum?I'm sure one of you Guru's knows what I'm doing wrong.