XP Screen saver has no settings option

 
1) Open the Registration Editor by Start menu > Run > enter "regedit"
2) Go here: "HKEY_CURRENT_USER\SOFTWARE\POLICIES\MICROSOFT\WINDOWS\CONTROL PANEL\DESKTOP" (or use Ctrl + F)
3) Double click the binary data files and change their "value data"
ScreenSaveActive --> whether you're applying a screensaver
ScreenSaveTimeOut --> seconds after screensaver is activated