Yes, I had an arnova 7g3 with that problem and sent it back for repair. While waiting for 5 weeks I got my Nexus 7 with extended store warranty to swap it if it happened again. Maybe we should epoxy the usb jacks for strain relief?
The problem will get worse if not fixed, make sure you back up and can factory reset before it goes out completely. Changing all my passwords was a pain. At least set up the lock screen.