It turned out that is not only me who has problem with running AutoCAD with Parallels (bootcamp virtual machine). The problem is when Autodesk poducts are run their license becomes deactivated. I looked through some forums and discovered that it is an old problem and seems it's still not resolved. The only way i was able to find to run AutoCAD without license problems is to make with parallels another one virtual machine (not a bootcamp). There you will not get problems with Autodesk licenses. Can anyone explain why it doesnt work with bootcamp virtual machine and it does work good with a separate windows virtual machine?