Newbie Question on an old Problem

[chibalicious]

screen issue again, new pc, installed sketchup, having that screen distortion thingy again, here's mg pc specs, maybe it'll help:
core 2 duo 2.93ghz, 3.50gb of ram, geforce 9500gt
had this issue a few years ago, a few 3d setting changes and poof, all ok (only i forgot those settings)

what should my 3d setting on my GeForce be?

anisotropic filtering -
antialiasing - gamme correction -
antialiasing - mode -

etc..

thanks in advance