dvd not showing at bios and sometimes on my computer

[helpppppppppppppppp]

Help me please. i have a computer winstar bios is gigabyte my dvd version is tsstcorp cddvdw sh224fb ata device.My dvd sometimes shows at my computer and sometimes not.In my bios doesnt shows the dvd only hdd and usb.Please help

 

[Phillip Corcoran]

The DVD drive may have become partially disconnected.
Hold the opposite edge of the laptop firmly, then give the outer edge of DVD drive a firm push inwards (do not hit it, just a firm push).

I have observed this before on laptops I've been given to repair. Usually happens with laptops that lead a very active life, being thrown into laptop bags every week and generally treated with less care than they should be.