I have tried for many hours to download and install updates for my Garmin unit. Everything is fine until the Garmin "Downloader" appears - only for a few seconds and then goes away . . . taking the browser with it!
I normally use Mozilla Firefox as my browser, but it wouldn't work using IE either! I spent over an hour checking all my settings, etc. and could not come up with an answer. I not only disabled all my protection (anti-virus, firewall, etc.) - I even completely uninstalled them! To no avail.
My OS is Windows Vista Ultimate 64-bit but theGarmin pros did not think that would be the issue.
Finally, used my neighbor's computer and everything worked just fine!