Weird AA experience

Hi all,

I've having this weird AA experience this last week.

Ive a GTX 570 with driver 275.33 using the latest nvidia inspector.

using 8xS with 2x SGSS same setup like Word Not Allowed is using.

I've had shader mod 3 installed but deleted it again since ive a nvidia card and rebuild the shader cache.

But I think it is since i removed the shader mod im getting a lot of shimmers and jaggied runway textures and taxiway lines, but also on trees and autogen buildings etc.

note that my AA is still working but not completely as it was just before and Ive already tried many things but Ive no idea what could cause this.

Hope i could solve this problem without reinstalling my FSX or Win 7. (do not like reinstalling drivers)

Thanks!