Yesterday i did a clean install of Windows and same thing happens, so Windows is not the problem.
The motherboard maybe? It's an Asus A7V8X-X.
Thanks both Fenor and happyrck for all your help but i decided to give up and connect the DVD device alone. It seems that this is the only way i can make it work.
Edited by Diego8, 11 March 2007 - 09:52 AM.