I recently disconnected my DVD drive which is the slave on the secpndary Ide channel. The hard drive is set to master. When i restart the computer it hangs and stops, it then reads Disk boot failure, insert system disk.. I checked in the bios to see if the boot device order is set correctly and it is.. If i reconnect the dvd drive and restart all is well. Any suggestions would be very helpful..The motherboard is a Asus A7N8X deluxe.