Anti Screen saver setting doesnt work properly

[jakub]

When i check Prevent Screen Saver running DVBViewer on the background, screen saver pops up after period it have set. But when i do have also checked On resume password protect (in Screen Saver tab), Screensaver will again popup (still checked Prevent Screen Saver in DVBViewer), but with activity it doesnt offer password dialogue, returns to desktop and keeps stucked .scr process in memory! When Disabling Prevent Screen Saver everything works fine...

[Klausing]

no needed informations , no help.