During normal operating Windows checks the drives if a CD is inserted. This may cause problems while writing to CD with some CD-Recorders. Pinnacle programs using ASAPI switch off the "auto insert notification" automatically when needed. If you use ASPI this can not be done. The program will show you then a list of devices and ask you which or all should be turned off.
Remove the marks in the check boxes for all the devices you want to use for writing. If you use Windows NT you can only switch off the notification for all devices.