Hello, I'm a newcomer to Parallels and this forum, and I've been having some trouble with Linux OS's lately. When I run either Ubuntu or Fedora, I'm told that my Parallels tools are out of date, and that I should upgrade them. Now, it's all fine and dandy up to this point, but when I go to the menu and select Virtual Machine/Upgrade Parallels Tools, and the (fake) disk mounts, I can't install them. When I open the contents of the "disk" and select install, and then click run, nothing happens. When I click run in terminal, I get a message in the terminal shell which reads, "Error: you do not have permissions to run this script. Please press 'Enter' to exit from Parallels Installer." My first thought was to unlock root access, but so far all of my attempts to do that have been unsuccessful. Similar things happen in Fedora. If anyone could help, I'd greatly appreciate it. I'm running both Ubuntu 11.04 and Fedora 15 in version 7 (the latest) of Parallels. Thanks, Nicholas.