Before doing an upgrade in fedora 11, be sure to back up the virtual machine file - because it ain't gonna work with Desktop for Mac 4.0 anymore. One will notice the Shared Parallels folder no longer points at anything. Attempting to re-install Parallel Tools throws an error into the log file: function prl_dg_init_one: prlgtc.c 765 'struct proc_dir_entry' has no member 'owner' Appears the linux folks changed something in the kernel code for the update.