Jumpy/jerky game?

[Kat Five Knives]

I'm having the same issue with my graphics 'jumping' . This is a new phenomenon.. my computer is under a year old and has NVIDIA graphics with 1 Gig on board the graphics processor alone ( 4 Gigs RAM). I have had no issues with graphics at all until yesterday when I experience the jumping you were describing. You are right, this is not the same as lag. IDK what is causing it or why things are different but it is very irritating and makes SVS near impossible.