just a heads up to all mac owners,i downloaded parallels for mac,loaded up the collectors edition and installed only enemy unknown.well to my great surprise [i've been trying to get the xcom games working on a mac for years,couldn't get to grips with dosbox] it started up,albeit incredibly sloooww.oh and no sound.but its a start anyway.so any wizards out there fancy tinkering around with it,please give it a go,thanks.