Have an NS20J here, the DVD drive is detected but does NOT read discs. Third drive in the Laptop now, it will eject so it is detected and installs drivers okay but none read discs. The Laptop will also not boot from a disc, all three drives have the same issue. I have reinstalled Windows, check the registry and deleted the keys listed by Microsoft. Still no luck. BIOS is the latest version. Anybody have any clue what could be the issue? Regards, The Dev.