I am running 2.1 on XP host, and CentOS 4.3 guest. I need to run Linux fullscreen, but Parallels keeps dropping full screen mode when: 1. The Linux screensaver kicks on. 2. I insert a CD and the XP shows the content of the CD automatically 3. XP screensaver kicks on. How can I make Parallels stay in full screen mode? Thank you.