2004 Kia Optima belt screech

I was hearing that belt screech sound from my car and had the belts replaced several months ago for my car to pass inspection; however, I still hear that screech sound. I took it back to the shop that replaced the belts. They said nothing was wrong and even tightened the belts a little more. But, I still hear the sound sometimes in the morning when I first pull out of my driveway.