I downloaded and played it and absolutly LOVED the time I got to play. However, on the second launch i cant actually get into a game. No tutorials, no scenarios, no campaign. It just crashes. I have to uninstall and install again to play it. I tried disabling bump map detail or whatever it is, but no use. Any help?

Try change the Direct3D option at the start up of the game. Also try doing the Windows 7 Nvidia Inspector fix if you're running Windows 7 and Nvidia, it can be found in the forums on GOG.