I just installed the security update on my Yosemite tower last night, restarted it, and now for some reason I am able to display a resolution of 1920x1080! I didn't think that was even possible with this stock Rage 128 in this old tower. It doesn't scale well to my 17" Apple Sudio Display, it's good for DVD playback since it's widescreen but thats about it. I just find it weird that suddenly I get a whole new resolution beyond the documented maximum of 1600x1200. Any ideas how/why this happened?