If the old dongle DOS driver was installed when IRRICAD Pro is installed, the new driver does not overwrite the old driver as it should.
* Remove the old driver - double clicking on SENTW95.exe (which is found in C:\Windows\System\Rnbosent), select the Functions menu and then select Uninstall driver.
* Delete the Rbosent folder.
* Restart the computer.
* Install the new sentinel driver - open the Install directory on the installation CD. Double-click on SentinelProtectionInstaller7.6.7.exe.