Does it happen when you unload WB?
Fences?
....No and no.... and not Rightclick, I still have it but never use it...same with ObjectDock....

I just can't get used to all that stuff on my *work area* I guess!!
It just began last week, actually only happened once last week, then yesterday. When I rebooted it was gone. I just came home for awhile and turned Zoe on and everything is fine.
Philly, it was anyplace on my desktop, whatever icon I clicked on , that burned area showed up. But like I said, when I rebooted it was gone, same thing last week.
When I was in Italy, my sister used it to check her email and bank stuff. That was 4 weeks ago.
Everything is current on here, anti-virus is always on and I run it once a week, Malwarebytes I run everyday also IObit.
I was thinking about this last night, and wondering if perhaps it could be my monitor.
About the system restore...I haven't made a restore point for a long time...I know not a good thing.