Okay, thank's for your quick response, that would explain the behavior for the bios...

I try to connect a harddrive to my lathe but it will not recognize it... I have enabled ide in the bios, put all the parameters for the hdd, ( cyl's etc.) but it still doesnt recognize the hdd. When i reboot, it says "wrong disk". Then i check the bios settings, and the ide is disabled... I'll use a...