Ah. I actually had something similar thing happen to me, with my GTK font and icons suiting my XFCE, but not my gnome theme which was annoying.
ATM i'm triple booting Windows 7, 8.1 and Arch due to some programs known for acting strange in 8.1, and some games just not behaving at all in WINE. I never realized it until my recent fresh install, but my 7 install runs faster than I expected when I actually look after it...
P.S: Google Chrome 'FTW'...