Echoing problem

[pinkbunniz]

I recently got a sprint touch pro i put the energy rom on and as soon as i did that anybody that called me got a real bad echo when they talked (i didnt hear it they were hearing themselves.) I thought it may be the radio rom so i changed from sprint to us cellular, which made no difference. Then I changed from the energy rom to the reflections rom which made no change either. With the stock sprint rom on I didnt have any issues but now with the different roms i do. Is there anyway to eliminate the issue without using the stock rom? I like the two roms Ive been using and dont want to use the stock rom but im sure my callers dont want to hear themselves talk. Is there a different radio rom or something i can try?

Thank you in advance.