[zaelu]

Avala I am afraid the problem lies within the drivers of nVidia (or ATI maybe if you have radeon).

I think that is an artefact from the anisotropy algoritm. I have same issue and I remember once it was a discussion on the perfection of anisotropig filtering algoritms from ATI and nVidia and ATI had the best one... cause they were cheating less :lol: