NuTech DDW 082 doesn't work!

I just bought a DDW-082 from Newegg but it doesn’t work. If powers up, eject the tray but when I put a CD (any), the green led remains on for some seconds and after that, it turns off.

I could upgrade the firmware to 375 and everything was ok. I changed the cables from a 80-pin to a 40, changed from Secondary to Primary controller… Always the same results…

When I put a CD, it makes same little noises but just this. Nero recognizes it ok too.

I have a LG 4081 (argh !!!) but it works ok.

Configuration: Motherboard Asus A7n8X with Serial Ata, Firewire, etc, Thermaltake PP 420W.