Here is the image when i double-clicked Terragen 2 Techno Preview.
![](http://img120.imageshack.us/img120/9861/prob1en6.th.png)
Then, i tried to made a terrain as simple as possible. It consist of one texture for shader, an atmosphere and a sunlight. I then clicked 'render'. Here the settings i used.
![](http://img83.imageshack.us/img83/6860/prob2bu4.th.png)
After bout 40 mins rendering, this 'pop-up' thing came, and when i clicked 'ok', TG2 closed.
![](http://img171.imageshack.us/img171/3112/prob3iq8.th.png)
So, any suggestion?!
btw, I tried to reinstall TG2, and its still the same problem.