Question Screen tearing ?

[toastedfsh]

I've just started to notice lines/warps in my screen's image when gaming. I have tried screen tearing tests and they don't appear to show anything abnormal and I have also noticed that it often does not affect the whole screen. Does anyone know what this is?. I have only noticed this recently and I have had my setup for a year now.

 

[boju]

Does Vsync make it disappear?

List PC specs and monitor.