OK ... this may be common knowledge to everyone, and I think at one time it was to me as well.
I updated my nVidia drivers to the latest version and 'jaggies' appeared all over the place. It had been awhile since the last update, so I kind of forgot the process. After looking around on the 'net for awhile it started coming back. There is an application called "nvidiaInspector". This little tool helps set the profiles for the nvidia card. Here is the link to post over at simforums that describes it all.
http://www.simforums.com/forums/nhancer-settings-for-new-drivers-updated-v1932_topic36586.htmlPut these back in and 'Bam' .... no more jaggies !
Thought I would pass this along in case anyone else needed it ..... or needed to remember it.