I can report one significant advantage to activitating it too. I am running this machine primarily as an HTPC and therefore my monitor is a TV (Panasonic plasma bought 5 years ago). The desktop never fit the screen, it was partially outside the viewing area and that was very annoying because I could only partially see the panel! I had tried changing my TV settings as per some threads I had read but nothing worked. Happily, activiting this driver has fixed the problem and I can now see everthing, most importantly the whole "Panel"
Not only that but I can set a decent resolution and everything looks a whole lot nicer!

