Alright here's the deal. I recently bought a new cd drive. When I went to install it it didn't work so I took it back. The the next time I started my computer up the drive didn't work and when I opened up My Computer it wasn't even in there. I tried to reinstall my drive but it didn't have its brand and I didn't have a disk. The drive wont open so I cant reboot my computer. Maybe you can help. The drive brand is Samsung.