Re: Sims 3 downloaded and installed on Mac, but it says 'No disc found, please insert disc to proceed'

I've had pretty much the same problem. it will let me go onto the loading screen to choose my game, but it will then proceed to say, 'no game disc found, please insert a disc to proceed.'

I'm certain that it is a valid copy of the sims 3 as i bought it from an authorised games store. it has had many glitches in the past but none that have disconnected me from the game. Anyone had this issue before?