Gary,
When you had installed NV2 you had chosen to install NV2 for a single user. Install NV2 again and choose the recommended button (All users).
If the option to install for all users is grayed out then cancel the installation and then right mouse click on the NV2 installation file you had download and click Run As. Click the following user button and run as the administrator and type in the administrator password.
Regards,
Martin
