ERIS call sound issue?

Hi all...

This is a weird question I'm sure...and I'm not really sure how to explain it...but when you talk into the phone, usually you can hear yourself in the ear piece. Since I have updated my phone to 2.1, I can no longer hear that. When I am talking on the phone, it sounds like the phone is not on, or dead. The strange thing is, people can still hear me, and I can still hear people on the call, but I just do not get that sound of my own voice in my ear as I talk like I did before. Does anyone know if this is a setting in the phone (I'm new to the Droid), or is this something that might have happend in the upgrade.

Again, the best way to explain it is that it feels like I am talking into a phone that is not turned on...i have to keep asking who I am talking to if they can hear me, because it sounds like the phone is off when I am speaking.

Any thoughts???

Thanks!