I've been running without trouble for years, but yesterday I noticed that my task bars were flickering every few seconds or so after waking up from screen saver mode. Only change I can imagine is that I fiddled around with "Enable desktop wallpaper slideshow" settings. I didn't leave them enabled though, I simply went back to a single wallpaper jpeg as before, and now the flicker happens after the screen saver runs.

I can stop it with "End Process" on the screen saver item in my task manager. Anything I can do to correct this?

Windows 7 quad monitor setup

Exactly. Reboot doesn't help. Disable screen saver, allow screens to power-save, all is well.

Good question! Unfortunately I think I blew up our test environment in the interim trying to fix it myself lol.

Yesterday I was digging around in my control panel and found that I had installed an updated nVidia driver over a month ago:

NVIDIA - Display - 7/18/2017 12:00:00 AM - 22.21.13.8494

Thinking it’s worth a try I uninstall it, reverting back to the last successful nVidia update:

nVidia - Graphics Adapter WDDM1.1, Graphics Adapter WDDM1.2 - NVIDIA GeForce GT 620 (‎1/‎19/‎2013)

Viola! Problem went away and I can run the “BlackHole” saver without issue again. Try to install the new driver again to verify the failure, and now I only get a failed install message:

NVIDIA - Display - 7/18/2017 12:00:00 AM - 22.21.13.8494
Installation date: ‎9/‎11/‎2017 8:30 AM
Installation status: Failed
Error details: Code 80070103
Update type: Optional
NVIDIA Display driver update released in July 2017

So, not sure that’s much help or not, but that’s what happened. I’ll report back here if I experience the taskbar flicker again, but I’m thinking this issue is not DisplayFusion, it’s my crappy system.

Thanks much for your quick responses and for the awesome utilities