Laptop Question

Recently, I purchased a Dell Inspiron 1505 back in early November. I am on my THIRD AC adaptor, and now it is making a high-pitched cd skipping noise. Sounds like it's coming up near the upper-right hand corner of the laptop. Any ideas of what this could be??
Hi Dick

Your Dell should normally still be on warranty, you should check for it right now because it can take a few weeks before you get it back (understand here chase season IS in a few weeks)