Power Screensaver builder supports multi-monitor since 3.6 version.
To specify which monitor to be used to display screen saver :
Please mouse right click on screen saver file (*.src) created by PSSB and select "Configure" item on the pop up menu , (you can also invoke this settings window by right clicking on desktop->Properties->Screensaver ) and then turn to the "Settings" tab . See following image:
Items in drop down list are enumerated from your windows system.
The first item in select list is entire virtual screen , if you select this item , screen saver will display on all monitors .
The second item that begins with "1 : " is the primary screen , the left - top coordinate is (0 , 0) .
The third item is secondary monitor , begins with "2 : " , and so on.