Using a virtualized Mac OS X OS, the shortcuts will not be tansfered correctly to the virtual OS, especially in full screen mode, which is really really boring. For example, Exposé (F9-F10-F11) will not work in the virtualized Mac OS but on the host Mac OS ... Same with Command C, Command V ... and most of other keyboard shortcuts. Otherwise, i didn't forget to activate the option "Enable Mac OS X system shortcuts". Mac OS X 10.6.2 - Parallels 5 5.0.9344