I installed windows 8 on a desktop computer that had windows 7 before. Screensaver was working perfectly on windows 7. Since windows 8, the screensaver won't start, the display won't turn off after 15 minutes like I set it up in power options. Just to test, I removed all USB devices that could prevent the screensaver to start. I closed all the programs running in the taskbar, including those hidden. The screensaver won't start even if I set it to one minute.
Pressing the preview screensaver button works. But letting it go by itself doesn't. This is very annoying, anyone had this problem?