When you start Blueworx Voice Response as described in Starting Blueworx Voice Response, the system starts both the background and foreground processes. If some of the processes do not start correctly, the Welcome window might be displayed and you might be able to log on to Blueworx Voice Response, but the system will not behave as expected.
Check that the tasklist.data file is not corrupted or missing, and that it has all the entries you need (see Checking the tasklist.data file).