ZiggyStardust :
It seems that there are many potential causes for the screen saver not to start according to the settings. After extensive troubleshooting, I resolved the issue by going into MSCONFIG.EXE and selecting "normal startup". Somehow, some of the system services had become set not to load at start up. I didn't change this setting and I'm the only administer, so I'm not sure how it happened. Nonetheless, as soon as I applied the change back to "normal startup" my screen saver and display power off features begun behaving normally.
RE> I have had the same issue with my screensaver and sleep/power-saving options not working for the last few weeks. I had this issue before, but somehow, it resolved itself. This time, it isn't and it is pissing me off. I have tried searching for the Windows update listed and did not find it. I tried the Power Troubleshooting fix and sadly, it fixed nothing. It merely disabled the screensaver. I went into Command and did a powercfg -requests and it came back with none for every option. When I went into MSCONFIG, Windows is starting under Selective Startup. When I select Normal Startup and reboot, it reverts right back to Selective. So, what do I do now?
UPDATE> I found a video on YouTube suggesting to start Windows under Diagnostic Startup. I did this and found that the screensaver activated after 1 minute. I then reentered MSCONFIG, choose Normal Startup and rebooted the machine. After 1 minute and without turning off any startup items, my screensaver loaded even though MSCONFIG reverted back to Selective Startup. I am hope that this has fixed this issue for good.
UPDATE 2> Restarted the computer a second time to double check this issue and once again found the screensaver not working. When I had it working, I noticed that NZXT Cam had not booted and this time around, it had. I disabled Cam from startup and sure enough, once I restarted the machine, the screensaver was working again.