Ok, I tested and I found that in Cakewalk Bandlab if the application doesn't have the focus (if you "see" another program) the display does not follow the song in the display (the bars should go on, but becomes "freezed"). Then, you press ALT+TAB and you go back to Cakewalk Bandlab and the display immediately runs as expected.
So, I tried the same thing using Sonar Platinum and this problem is not present.
Should someone inform the bakers for a correction for the future?
Should I do this?
Bye, Giorgio