2007 elantra squeling

Hi, when I bought my 2007 elantra several months ago a belt was replaced on it. After a month or so a squealing noise developed most of the time when I would start the car. I found that the noise would also come sometimes when I would press the gas pedal or when I would be turning. I brought it in to the the used car dealer where I had a warranty and they said that all that was wrong was that the belt needed to be tightened. Recently the car has started to make the noise again, is this the belt again or could it be something else now?

Here's another thread a couple below your post...

http://www.automotiveforums.com/vbulletin/showthread.php?t=1083195