why does the alternator belt make a screeching sound when first cranked? on 1991 Hyundai Excel

The screeching sounds occurs when I first crank the car in the mornings and does not make this sound once the car is warmed up. I just had the belt replaced a month ago. Please advise.

1 answer
The belt is probably not tight enough or it has been contaminated with oil or coolant. Take it back to the guy who installed it and give him a chance to make it good or tell you what's wrong if it's not the belt.