Okie.. I installed it and it went fine.. no sparks or anything..
I have a known problem with Sid Meyer's Railroads. It doesn't like it when I run my graphics cards in Crossfire mode.. In fact, it crashes my machine so hard that I have to do a cold reboot.. it doesn't just reboot itself..
So.. of course the first thing I did after my upgrade was fire up Railroads without taking my cards out of Crossfire mode..
I get a C++ dialogue box that says "DLL experienced unusual request" or some such, and the application ended without booting my box.. That impressed me..
Otherwise, it seems like it boots a bit faster as well. I'll report anything unusual.