Some general info which may help explain what you are asking.
Once the Idle Full System starts (when the system is in idle), it will run until system comes out of idle - which could be 5 minutes, 1/2 hour, or longer. Once system activity is detected the scan stops and rmains stopped unti such time as the system goes backinto idle. Once that occurs, the scan picks up from where it left off (and displays the popup syaing it is background tasks). It will continue this cycle until one of two thigns ocur. The full system scan completes durin idle time or the scan has been delayed so many tmies it just forces itself to be completed. Once it forces itself to completion it may load down your system. Once it is complete your system speed will return to normal and the 7 day clock for Idle Full System Scan will be reset and the scan wil not run again for 7 days.
You can go to Tasks > Check Norton Tasks > and this will tell you the last time your Idle Full System Scan was completed.
Now in regards to the "it pops up every minute". The Idle Time Out can be set from 1 Minute to 10 minutes, so you may need to check your Idle Time Out setting and readjust it for a longer period of time. Settings > Administrative Settings > Idle Time Out drop down.
The reason NSS and Norton 360 are not as programmable as NIS is because they are meant to be "set it and forget it" type programs. They are intended fo rthe lesser tech savy user than NIS is intended for.
Hopefully this explains some of what you are seeing.
