Hi, unfortunately i tried this solution but it didn't work. The problem occours just when i use Autocad so open and quit the program doesn't help, and i had to remove completely the application to "solve" any kind of problem.

At the moment I think I have to give up, but is it possibile that we will have an update to fix it? Or the 2016 version? Even because I still don't understand if the problem it's concerning my computer, or the program. Maybe there are some preference file, or drivers, that i have to reset, or update. I really hope that there is something like that because i saw lot of threads about that on internet, so it will help a lot of peolple, but no one seems to know what causes the problem.

Thank you.

Andrea.