Why is it stuck at ONE resolution?

I HAD THIS GAME, BEFORE IT WAS DELETED ALONG WITH ALL THE OTHER DATA ON MY COMPUTER WHEN IT HAD A PROBLEM. GAMEPLAY WAS BETTER ON IOS. ANOTHER THING. A SERIOUS PROBELM. THE GAME WAS STUCK AT 640 RESOLUTION. THERE IS A RESOLUTION OPTION, BUT FOR WHATEVER REASON IT IS STUCK AT 640. DO NOT BUY IF YOU ARE A FREAK ABOUT RESOLUTION.

Play it on Mac about Grand Theft Auto 3