Sony notebook not recognizing CD/DVD

I have a Sony notebook model PCG-K27 Operating system Windows XP Home edition. The computer is not showing a cd/dvd drive. It is not in my computer, device manager, or even in the bios. It was working a week or so back. I have tried resetting bios to default settings but still have not had any luck. Anyone with a suggestion?

Thanks

does the drive show up in bios?

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Originally Posted by asm481

does the drive show up in bios?

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As I said in original post it doesn't show in bios, my computer, or device manager.