An error has occurred while setting your Screen Saver.
Screen Saver Not Found: C:\Program Files (x86)\DisplayFusion\DFSSaver.scr

I've been attempting to resolve an issue with another unrealted software package and Java. And after Uninstalling and re-installing Java, I began seeing this error.

Do I need to re-install DF?

Thanks Keith, Indeed - Kaspersky Internet Security had quarantined the file. Heuristics tagged it as a Trojan.