GPS 64s won't connect to a PC

Former Member
Former Member
My Garmin GPS 64s has always synced right up to my computer (running Basecamp). All of a sudden the computer won't see it as a file storage device (but it will charge the unit). I've also tried it on various other computers and it does the same (does not register as a storage device at all). I've reloaded the drivers and basecamp.

Any ideas?