Again, I have problems with current Parallels Desktop (Version 11.1.2 (32408)) and Ubuntu 15.10. I upgraded compiz and now I cannot see any side or menubar in Unity. What I have tried so far to fix this problem: - rm -rf ~/.config; reboot - Install Parallels Tools again None helped! The problem occurs again and again! It's really frustrating when you really require a reliable virtual machine for Linux.