When exiting the program the following instructions are given - Always wait until the drive access light has stopped blinking and then click the icon in your system tray to 'Safely Remove' your device. When I follow these instructions I get the message "the device volume cannot be stopped right now. Try stopping the device again later". Later never comes and I end up just unplugging the USB device. Is there something I am missing or is this the only way to stop the Portable Apps program.