I use an Andrea UISB sound card for my microphone input. I've been carting it back & forth to my other location and finally decided to get a second one so I didn't have to bring it back & forth.

The new one is the same as the old one. Yet Dragon insists that my user hasn't been trained yet. Does it recognize something about the sound card as being different? My user files have a lot of training in them. How can I open them up like I did last time I used Dragon?

Did you remember to switch out your USB soundcard before launching NaturallySpeaking? There is also a possibility that NaturallySpeaking thinks this is a 2nd USB soundcard. Although you probably only need to run the Audio Setup Wizard, if NaturallySpeaking thinks that this is a 2nd USB soundcard, you'll wind up getting the same error when you reboot so we recommend the following:

Reboot your computer now, to play it safe and make sure that your USB soundcard is plugged into an appropriate USB port. A rear USB port on a desktop computer or any port on a notebook computer will suffice. Do not use a USB hub, splitter or front or side port on a desktop computer. Launch NaturallySpeaking and if you are asked to train NaturallySpeaking, you're probably only being prompted to run the Audio Setup Wizard which takes 30 seconds. All things considered, it's a good idea to run the Audio Setup Wizard on any new USB soundcard (even if it's the same brand/model) because no 2 USB soundcards are going to be exactly alike.