I have not had a single issue regarding the game for either win8 or win8.1 EXCEPT I have to run it in compatibility XP mode to get fullscreen but when I do it runs fullscreen better than XP ever did.
Well that makes me feel better when I get my new system next year. But until then it's XP until support runs out in 4/14. My eye is on 32 GIG RAM systems so a little more pocket change will be put aside by then, just haven't figured a way to get one for free...legally. Back to the vacation before CINC demotes me!