Dear Antonio :
It sounds like your model is not running to completion. Please make certain that DAMBRK is oeprating on your computer by trying one of the example problems. I would recommend example problem P04.DBK. That should generate graphical output.
Note also that you need to request graphical output in the output options input screen, as well as the cross-section description input screen. Otherwise, graphical output will not be generated.
I have not heard of people having trouble making <Alt> <-> and <Alt> <=> not work. Perhaps your keyboard is mapped differently than that of US keyboards? In your system BIOS setting you can change the default keyboard mapping. Can you try a US keyboard setting? I think this will fix the problem. If so, all you need to do is determine which of your keys generate the same keyscan code as the US keyboard. Your computer manufacturer should be able to provide you with that information.
If you have any additional questions or need any further information, please contact me again.
Sincerely,
Chris E. Maeder, M.S.
Senior Technical Engineer
chris.maeder@bossintl.com