Nano v2 locks up when USB is plugged in

Nano v2 - BenF firmware v3.43

It works normally on battery power, but locks up when USB is plugged in. Also, Nano freezes during boot of USB is plugged in. Is this normal??

OK - I’ll answer my own question. Something in a recent dbus upgrade has rendered my Linux system Nano-hostile. Works OK plugged into an older Linux system (same hardware - different HD) and an XP box.