Recently my macbook pro has developed a noticeable buzz in the bottom right hand side near the speaker. It seems to be more prominant when using XP in bootcamp, but still exists in Leopard.

As it only had one year warranty, I believe it may be out of warranty now.
However, I am aware of the 'Of merchantable quality' provision in the trade practises act that could potentially cover me in this instance.

Has anyone else experienced this problem or had out-of-warranty claims processed?