When I installed Tropico 3 from GoG I got the error "Tropico 3 has stopped working" and could not start it. After some research I found this is an issue with Nvidia graphic cards and multiple monitors. At first I disabled my second monitor. Later I found this thread, which explains how to solve the problem by placing the game in windowed mode:

http://www.techpowerup.com/forums/showthread.php?t=119569

I just wanted to share that in case anyone else is having the same issue.