Hi Dean
I'm jumping into this situation because for the last few days my screensaver is also not working.
I updated to windows 8.1 about 10 months ago and my saver was working fine until just recently.
Now I get a blank blue screen and can't get the computer out of it unless I hit the restart button my tower. I tried calling up the screensaver menu but it won't allow me make any changes and it just sits there with the little circle going around and around!
There must have been an update from Microsoft within the last few weeks that caused this.
I'd be very happy just to turn the darn screensaver OFF but seems I'm unable to do this.
Let's all scream very loud at Microsoft - you would think they'd at least acknowledge this BIG problem and help the customers who rely on them. But there you go - that's what happens when you have a monopoly on the market.
Marlene