ND-4550a always shows name of disc at boot

My NEC ND-4550a won’t shake off the name of the disc that was in it when it was booted.
When i insert a new disc, My Computer won’t show it. It only shows the disc that was in it when booted.
This is becoming a nusiance, as i now have to manually “open” DVDs instead of clicking on them, and if a DVD was in originally, whatever disc i put in it tries to open it in PowerDVD.

Help needed. Thanks.