GTA III stopped launching for no reason?

[ideal.dreams]

I downloaded GTA III from the App Store last year and it's played just fine on my system. I went to play it about two weeks ago and it won't launch. I double clicked the app and doesn't load. No dock icon or anything. I called Apple about it and the only support they could offer me was to delete/redownload the application. So I did and still nothing.

Anyone know of a fix or why this happened?