I just installed a kes-450a laser on a ps3 because the laser was dead. After installation I tried playing a bluray movie, American Psycho, and it would not load. At first I would get 80029940 error which said "this video cannot be played". Now I can't even see the BD-ROM option under video on XMB. The drive makes noises like it is trying to read it and stop, makes the noise again and stops. I've searched online for an answer but I can't find anything. Has anyone ever come across such thing?