@TjLaZer
That really sucks... :-(
If I were you I would leave a negative to the buyer as well, or at least modify a feedback if you already left it.
@Jeff
How very true. Once I bought a DVD on ebay which turned out to be a pirated copy which the seller attempted to make look like an original. I never left the seller any feedback and he never did leave any for me either because I did not want to get a negative in retaliation.