It sounds like a corrupted driver issue. Right-click My Computer --> Properties --> under Tasks select Device Manager -->take a look to see there are no exclamation points next to any of the devices-->under DVD/CD-ROM drives right-click the one you have installed and select uninstall -->next step is to right-click Computer or any other device and select scan for hardware changes. click here
Normally your DVD drive will be detected and the drivers reinstalled automatically as the drivers are stored in a Windows folder called driver store.
Please keep us posted on your progress.