emutiny

Ive tried many belts. Ive tried tight, loose, super tight, and super loose. It just will not stop squealing. The belt gets really hot and melts off if I leave it running. The alternator and water pump spin smoothly. It runs fine with no belt. I just dont understand. If anybody has any insight i would greatly appreciate it. My transmission in my ford explorer nuked all over the road and I have to get to work tomorrow.