Anyone else running into this?  Things seemed fine with my 3Dconnexion SpaceNavigator I've been using for years, until a couple of days ago.  When I shut down Tuesday night, there was 1 Windows 7 update to install, and in the morning, I couldnt get my driver to start.  I uninstalled & reinstalled it, to no avail.  I then found instructions on how to cleanly uninstall it (involving removing 3Dconnexion things from the registry), and I followed those, rinstalled, and still the same behavior.  No response so far from 3Dconnexion on the issue.  I will say there are a few other annoyances going on with my computer that could be related - occasional freezes and yesterday I when I was going to the 3Dconnexion website, I was trying to get the driver to start, I soon got the blue screen of death, which hasn't repeated itself since.