Well, that's basically it, what the title says. I had previously lapped up to 2000 grit, but i had some 2500 around, so I thought, why not? I did everything right, but I guess I was just unlucky this time. Static electricity may have had something to do with it. My PC won't post with it in. I'm going to try everything I can think of, but I'm 99% sure it's gone. I lapped it so I doubt I'll be able to send it back as faulty.
EDIT: F##king French keyboard with the "A" in the place of the "Q"!!!
AMD Phenom II X4 955 BE @ 4.0GHz + TU120E lapped - MSI 770-CD45 AM3 - 2x2GB OCZ DDR3 1333MHz - Sapphire HD 4870 - Samsung Spinpoint 500GB 7200RPM 16MB cache HDD - Tagan TG600-BZ Piperock - (Currently open test bed) - Windows Vista Home Premium 64bit.