I've had this a while now, maybe you guys can try it out too just to make sure its not just my system. I like to run Quicktime to listen to music, much more delicate than iTunes for playing just 1 song a few times over i find. Only i have Safari open too. and using hot-corners for Expose (though it works with keys too) you get a little problem. try it now if you want. open quicktime 7, maybe play a song or whatever and open another app. Expose all windows (F9) then press Quicktime. it still highlights Safari for me, so you go around thinking "woot! Quicktime is highlighted" then you press Apple+Q... oh dear... anyone else had this problem?