Closing Nero

Upon closing Nero after using any of its applications start smart remains active in the system tray. If I then close it from here and I open the task manager the process is still running, which I then have to end manually. The process I noticed running after it should have been closed courses delays in things like opening the c_drive and will generally create temporary lock-ups; as soon as I end the process all is smooth again. I have tried a re-installation to no avail and have the same copy on another pc that runs fine although with less of neros applications. It does surprise me that this should happen as my pc has plenty of ram at 1 GB and a P4 3.4. I have had problems with Nero in the past when In-Cd was causing a total lock-up upon inserting any cd/dvd.

Any help you can offer would be great, cheers Rhyth.