I get 60FPS ingame,.. My FPS is fine, even when I'm casting. It's just the cast bar that's jerky. Everything else is smooth as always =\
I tried removing ag_Unitframes from my Addons and reset my WTF folder, but it still does the same thing. I copied and pasted my Addons and WTF folder to another computer with WoW and the castbar frames work perfectly fine on that though.. It's wierd.