I am testing Parallels Desktop on a MacBook Pro. I impoterd some Windows XP VMs and they works fine for a limited amount of time. After some days or some hours I cannot operate the VMs anymore: I can start them and move the pointer but if I click an item nothing happens. If I move the pointer to a text box I cannot enter any text from the keyboard. The problem happended more times with different VMs after creating or importing them: what am I missing? What can I check in order to makethe VMs work again? Regards marius