Disinstalled previous version of GE and installed a freshly 7.2.2.0 from Garmin, deleted any cache, temp file, device but nothing to do. Made a master reset of the 595, done same operations on 3 different PC, done same things with at least 6 different USB cables but no success. The "connection" icon appears RED when USB is connected, after 1 minute the GPS restarts in normal mode. The icon is grey if I set MTP as Mass storage, but nothing changes in GE or USB list; after 1 minute the GPS restarts in normal mode. In both cases PC says "Usb device not recognized or not working". Do you think Garmin can find a definitive fix to an issue present at least twice in any page of this forum? Please only seriuos and competent answers, read FAQ or "due to your system" are a waste of time. It worked fine until the previous update of GE, then began the tragedy. May be a USB drivers issue?