When i try to boot computer with CD/DVD i cant, i press F12 and "CD/DVD BOOT" is missing. In My Computer is missing CD/DVD. I have cd in and when i touch sensor button to eject cd-rom start spinning for a litle time it about 30 sec and stop again. I have tried to install R166212 (CD/DVD firmware upgrade) the program can' find the target drive. It look like i dont have CD. NOwhere the computer detect it.

Sorry for my bad english