Quote Originally Posted by remana View Post
My eTrex Vista HCx is on 3.20.
Use version 3.20! You nothing to find and nothing to lose with 3.30 or 3.40. This versions is usually SW for supporting manufacture. By another world it have minor change for support a new device with new circuit design. If you have the "old" Sw so you have "old" circuit design. The best the enemy of good...