I just installed ver 6, too, and am impressed at the improvements in the menus.  I'm very excited to fly it soon in some IFR training.  I did notice one transient error message as the update installed:  it was something about not locating a .dll file, but the message cleared itself, and the update did finish.  Did anyone else notice that? Nice job, guys!  Next step:  pick the best ADS-B receiver to use with it.  Feedback?